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Sony A5100 vs A9

The Sony Alpha A5100 and the Sony Alpha A9 are two digital cameras that were revealed to the public, respectively, in August 2014 and April 2017. Both the A5100 and the A9 are mirrorless interchangeable lens cameras that are based on an APS-C (A5100) and a full frame (A9) sensor. Both cameras offer a resolution of 24 megapixels.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Sony A5100
versus
Sony A9
Sony A5100   Sony A9
Mirrorless system camera Mirrorless system camera
Sony E mount lenses Sony E mount lenses
24 MP – APS-C sensor 24 MP – Full Frame sensor
1080/60p Video 4K/30p Video
ISO 100-25,600 ISO 100-51,200 (50 - 204,800)
No viewfinder, LCD framing Electronic viewfinder (3686k dots)
3.0" LCD – 922k dots 3.0" LCD – 1440k dots
Tilting touchscreen Tilting touchscreen
6 shutter flaps per second 20 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
400 shots per battery charge650 shots per battery charge
110 x 63 x 36 mm, 283 g 127 x 96 x 63 mm, 673 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A5100 and the Sony Alpha A9? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The physical size and weight of the Sony A5100 and the Sony A9 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

The A5100 can be obtained in two different colors (black, white), while the A9 is only available in black.

Size Sony A5100 vs Sony A9
Compare A5100 versus A9 top
Comparison A5100 or A9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 is considerably larger (76 percent) than the Sony A5100. Moreover, the A9 is substantially heavier (138 percent) than the A5100. It is noteworthy in this context that the A9 is splash and dust-proof, while the A5100 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Sony E-Mount Lens Catalog (A5100) and the Sony FE Lens Catalog (A9). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the A5100 gets 400 shots out of its NP-FW50 battery, while the A9 can take 650 images on a single charge of its NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A5100 110 mm 63 mm 36 mm 283 g 400 n Aug 2014 549ebay.com
2.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
3.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 amazon.com
4.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
5.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
6.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
7.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
8.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
9.
 
Sony A5000 110 mm 63 mm 36 mm 269 g 420 n Jan 2014 449ebay.com
10.
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 599ebay.com
11.
 
Sony A3000 128 mm 91 mm 85 mm 411 g 470 n Aug 2013 329ebay.com
12.
 
Sony NEX-3N 110 mm 62 mm 35 mm 269 g 480 n Feb 2013 499ebay.com
13.
 
Sony NEX-5T 111 mm 59 mm 39 mm 276 g 330 n Aug 2013 699ebay.com
14.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749ebay.com
15.
 
Sony NEX-F3 117 mm 67 mm 42 mm 314 g 470 n May 2012 599ebay.com
16.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649ebay.com
17.
 
Sony NEX-3 117 mm 62 mm 33 mm 297 g 330 n May 2010 599ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A5100 was launched at a markedly lower price (by 88 percent) than the A9, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Sony A5100 features an APS-C sensor and the Sony A9 a full frame sensor. The sensor area in the A9 is 131 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A5100 and Sony A9 sensor measures

Even though the A9 has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the A9 has a lower pixel density and larger individual pixels (with a pixel pitch of 5.94μm versus 3.91μm for the A5100), which gives it a potential advantage in terms of light gathering capacity. In addition, the A9 is much more recent (by 2 years and 8 months) than the A5100, and its sensor will have benefitted from technological advances during this time.

The Sony Alpha A5100 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Sony Alpha A9 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the A5100 is build around a CMOS sensor, while the A9 uses a Stacked BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

A5100 versus A9 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A9 offers substantially better image quality than the A5100 (overall score 12 points higher). The advantage is based on 1.1 bits higher color depth, 0.6 EV in additional dynamic range, and 1.4 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
2.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
3.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
4.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
5.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
6.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
7.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
8.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
9.
 
Sony A5000 APS-C 19.8 5456 36321080/60i23.813.0108979
10.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
11.
 
Sony A3000 APS-C 19.8 5456 36321080/60i23.712.8106878
12.
 
Sony NEX-3N APS-C 16.0 4912 32641080/60i22.812.5106774
13.
 
Sony NEX-5T APS-C 16.0 4912 32641080/60p23.613.0101578
14.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
15.
 
Sony NEX-F3 APS-C 16.0 4912 32641080/60i22.712.3111473
16.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
17.
 
Sony NEX-3 APS-C 14.0 4592 3056720/30p22.112.083068

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A9 provides a better video resolution than the A5100. It can shoot movie footage at 4K/30p, while the A5100 is limited to 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A9 has an electronic viewfinder (3686k dots), which can be very helpful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Sony A5100 and Sony A9 along with similar information for a selection of comparators.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Sony A5100none n3.0 / 922 tilting Y 1/4000s 6.0/s Y n
2.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
3.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
4.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
5.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
6.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
7.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
8.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
9.
 
Sony A5000none n3.0 / 461 tilting n 1/4000s 3.5/s Y n
10.
 
Sony A60001440 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
11.
 
Sony A3000202 n3.0 / 230 fixed n 1/4000s 2.5/s Y n
12.
 
Sony NEX-3Noptional n3.0 / 460 tilting n 1/4000s 4.0/s Y n
13.
 
Sony NEX-5Toptional n3.0 / 922 tilting Y 1/4000s 10.0/s n n
14.
 
Sony RX100 IIoptional n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
15.
 
Sony NEX-F3optional n3.0 / 920 tilting n 1/4000s 5.5/s Y n
16.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
17.
 
Sony NEX-3optional n3.0 / 920 tilting n 1/4000s 7.0/s n n
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The A5100 has one, while the A9 does not. While the built-in flash of the A5100 is not very powerful, it can at times be useful as a fill-in light.

The A5100 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A9 does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A9 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

Concerning the storage of imaging data, both the A5100 and the A9 write their files to SDXC or Memory Stick PRO Duo cards. The A9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A5100 only has one slot. The A9 supports UHS-II cards (on its first slot), while the A5100 can use UHS-I cards.

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Sony Alpha A5100 and Sony Alpha A9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A5100-stereo / mono--micro2.0YY-
2.
 
Sony A9Ystereo / monoYYmicro2.0YYY
3.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY
4.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
5.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
6.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
7.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
8.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
9.
 
Sony A5000-stereo / mono--micro2.0YY-
10.
 
Sony A6000Ystereo / mono--micro2.0YY-
11.
 
Sony A3000Ystereo / mono--mini2.0---
12.
 
Sony NEX-3N-stereo / mono--micro2.0---
13.
 
Sony NEX-5TYstereo / mono--mini2.0YY-
14.
 
Sony RX100 IIYstereo / mono--micro2.0YY-
15.
 
Sony NEX-F3Ystereo / mono--mini2.0---
16.
 
Sony RX100-stereo / mono--micro2.0---
17.
 
Sony NEX-3Ystereo / mono--mini2.0---

It is notable that the A9 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The A5100 lacks such a headphone port.

Studio photographers will appreciate that the Sony A9 (unlike the A5100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the A5100 and the A9 have been discontinued, but can regularly be found used on ebay. The A9 was replaced by the Sony A9 II, while the A5100 does not have a direct successor. Further information on the features and operation of the A5100 and A9 can be found, respectively, in the Sony A5100 Manual (free pdf) or the online Sony A9 Manual.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Sony A5100 and the Sony A9? Which camera is better? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Sony Alpha A5100:

  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (110x63mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 390g or 58 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (88 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2014).


Advantages of the Sony Alpha A9:

  • Better image quality: Scores substantially higher (12 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.1 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (0.6 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.4 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 922k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (20 vs 6 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Longer lasting: Gets more shots (650 versus 400) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 2 years and 8 months of technical progress since the A5100 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A9 is the clear winner of the contest (21 : 6 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

A5100 06:21 A9

How about other alternatives? Do the specifications of the Sony A5100 and the Sony A9 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the A5100 and the A9 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A51004.5/5+....4.5/55/5 Aug 2014 549ebay.com
2.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
3.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 4,499 amazon.com
4.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
5.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
6.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
7.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
8.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
9.
 
Sony A50003/5+....4.5/54.5/5 Jan 2014 449ebay.com
10.
 
Sony A60005/5+4.5/580/1004.5/55/5 Feb 2014 599ebay.com
11.
 
Sony A30003/5+....4/54/5 Aug 2013 329ebay.com
12.
 
Sony NEX-3N3/5......4.5/54.5/5 Feb 2013 499ebay.com
13.
 
Sony NEX-5T........4.5/54.5/5 Aug 2013 699ebay.com
14.
 
Sony RX100 II5/5+ +..79/1004.5/54.5/5 Jun 2013 749ebay.com
15.
 
Sony NEX-F34/5....74/1004.5/54.5/5 May 2012 599ebay.com
16.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 649ebay.com
17.
 
Sony NEX-3......70/1004.5/54/5 May 2010 599ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Sony A5100 vs Sony A9

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Sony A5100 Sony A9
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Sony E mount lenses Sony E mount lenses
    Launch Date August 2014 April 2017
    Launch Price USD 549 USD 4,499
    Sensor Specs Sony A5100 Sony A9
    Sensor Technology CMOS Stacked BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.6 mm 35.6 x 23.8 mm
    Sensor Area 366.6 mm2 847.28 mm2
    Sensor Diagonal 28.2 mm 42.8 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 24 Megapixels 24 Megapixels
    Image Resolution 6000 x 4000 pixels 6000 x 4000 pixels
    Pixel Pitch 3.91 μm 5.94 μm
    Pixel Density 6.55 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 100 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost no Enhancement 50 - 204,800 ISO
    Image Processor BIONZ X BIONZ X
    DXO Sensor Quality (score) 80 92
    DXO Color Depth (bits) 23.8 24.9
    DXO Dynamic Range (EV) 12.7 13.3
    DXO Low Light (ISO) 1347 3517
    Screen Specs Sony A5100 Sony A9
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1440k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony A5100 Sony A9
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 20 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium MS or SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Single UHS-II
    Connectivity Specs Sony A5100 Sony A9
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Sony A5100 Sony A9
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type NP-FW50 NP-FZ100
    Battery Life (CIPA)400 shots per charge650 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 110 x 63 x 36 mm
    (4.3 x 2.5 x 1.4 in)
    127 x 96 x 63 mm
    (5.0 x 3.8 x 2.5 in)
    Camera Weight 283 g (10.0 oz) 673 g (23.7 oz)
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