Canon SX70 vs Olympus TG-4
The Canon PowerShot SX70 HS and the Olympus Tough TG-4 are two digital cameras that were announced, respectively, in September 2018 and April 2015. Both the SX70 and the TG-4 are fixed lens compact cameras that are equipped with a 1/2.3-inch sensor. The Canon has a resolution of 20.2 megapixels, whereas the Olympus provides 15.9 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX70 HS and the Olympus Tough TG-4? 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.
The physical size and weight of the Canon SX70 and the Olympus TG-4 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.
The TG-4 can be obtained in two different colors (black, red), while the SX70 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus TG-4 is considerably smaller (36 percent) than the Canon SX70. Moreover, the TG-4 is substantially lighter (59 percent) than the SX70. It is noteworthy in this context that the TG-4 is splash and dust-proof, while the SX70 does not feature any corresponding weather-sealing. More than that, the TG-4 is water-proof up to 15m and can, thus, be used for underwater photography.
Concerning battery life, the SX70 gets 325 shots out of its LP-E12 battery, while the TG-4 can take 380 images on a single charge of its LI-92B power pack. The power pack in the TG-4 can be charged via the USB port, 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 would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Canon SX70||127 mm||91 mm||117 mm||608 g||325||n||Sep 2018||549|
|2.||Olympus TG-4||112 mm||66 mm||31 mm||247 g||380||Y||Apr 2015||379|
|3.||Canon SX740||110 mm||64 mm||40 mm||299 g||265||n||Jul 2018||399|
|4.||Canon SX430||104 mm||69 mm||85 mm||323 g||195||n||Jan 2017||299|
|5.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|6.||Canon G9 X Mark II||98 mm||58 mm||31 mm||206 g||235||n||Jan 2017||529|
|7.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|8.||Canon SX60||128 mm||93 mm||114 mm||650 g||340||n||Sep 2014||549|
|9.||Canon SX1||128 mm||88 mm||88 mm||615 g||..||n||Sep 2008||599|
|10.||Fujifilm XP140||110 mm||71 mm||28 mm||207 g||240||Y||Feb 2019||229|
|11.||Nikon W300||112 mm||66 mm||29 mm||231 g||280||Y||May 2017||389|
|12.||Nikon B700||125 mm||85 mm||107 mm||565 g||350||n||Feb 2016||499|
|13.||Olympus TG-6||113 mm||66 mm||32 mm||253 g||340||Y||May 2019||449|
|14.||Olympus TG-5||113 mm||66 mm||32 mm||250 g||340||Y||May 2017||449|
|15.||Panasonic FZ80||130 mm||94 mm||119 mm||616 g||330||n||Jan 2017||399|
|16.||Sony HX80||102 mm||58 mm||36 mm||245 g||390||n||Mar 2016||349|
|17.||Sony HX400V||130 mm||93 mm||103 mm||660 g||300||n||Feb 2014||499|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The TG-4 was launched at a markedly lower price (by 31 percent) than the SX70, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Both cameras under consideration feature a 1/2.3-inch sensor and have a format factor (sometimes also referred to as "crop factor") of 5.6. Within the spectrum of camera sensors, this places the review cameras among the smaller-sensor digicams that favor affordability and compact design. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
While the two cameras under review share the same sensor size, the SX70 offers a higher resolution of 20.2 megapixels, compared with 15.9 MP of the TG-4. This megapixels advantage translates into a 13 percent gain in linear resolution. On the other hand, these sensor specs imply that the SX70 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.18μm versus 1.33μm for the TG-4). In this context, it should be noted, however, that the SX70 is much more recent (by 3 years and 5 months) than the TG-4, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the SX70 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Canon SX70 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX70 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Olympus TG-4 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.
The Canon PowerShot SX70 HS has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Olympus Tough TG-4 are ISO 100 to ISO 6400 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|6.||Canon G9 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.9||12.5||522||65|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the SX70 provides a higher video resolution than the TG-4. It can shoot video footage at 4K/30p, while the Olympus is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the SX70 has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the TG-4 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon SX70 and Olympus TG-4 along with similar information for a selection of comparators.
|6.||Canon G9 X Mark II||none||n||3.0||1040||fixed||Y||1/2000s||8.2||Y||Y|
The Olympus TG-4 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Both the SX70 and the TG-4 have zoom lenses built in. The SX70 has a 21-1365mm f/3.4-6.5 optic and the TG-4 offers a 25-100mm f/2.0-4.9 (focal lengths in full frame equivalent terms). Hence, the Canon provides a wider angle of view at the short end, as well as more tele-photo reach at the long end than the Olympus. The TG-4 offers the faster maximum aperture.
Concerning the storage of imaging data, both the SX70 and the TG-4 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 Canon PowerShot SX70 HS and Olympus Tough TG-4 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|6.||Canon G9 X Mark II||-||stereo||mono||-||-||micro||2.0||Y||Y||Y|
It is notable that the SX70 has a microphone port, which is missing on the TG-4. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Travel and landscape photographers will find it useful that the TG-4 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The SX70 is a recent model that features in the current product line-up of Canon. In contrast, the TG-4 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the TG-4 was succeeded by the Olympus TG-5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Olympus websites.
So what conclusions can be drawn? Is the Canon SX70 better than the Olympus TG-4 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon PowerShot SX70 HS:
- More detail: Offers more megapixels (20.2 vs 15.9MP) with a 13% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (922k vs 460k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
- Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More modern: Reflects 3 years and 5 months of technical progress since the TG-4 launch.
Arguments in favor of the Olympus Tough TG-4:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Better light gathering: Has a lens with a wider maximum aperture (f/2.0 vs f/3.4).
- More compact: Is smaller (112x66mm vs 127x91mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 361g or 59 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (380 versus 325) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 15m).
- Easier geotagging: Features an internal GPS sensor to log localization data.
- More affordable: Was introduced into a lower priced category (31 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in April 2015).
If the number of relative strengths (bullet points above) is taken as a guide, the SX70 comes out slightly ahead of the TG-4 (13 : 12 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.
How about other alternatives? Do the specifications of the Canon SX70 and the Olympus TG-4 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Travel-Zoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the SX70 or the TG-4 perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], 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.
|1.||Canon SX70||..||+ +||..||3.5/5||3.5/5||Sep 2018||549|
|2.||Olympus TG-4||..||+||79/100||4/5||4/5||Apr 2015||379|
|3.||Canon SX740||..||+||..||4/5||4/5||Jul 2018||399|
|4.||Canon SX430||..||..||..||3.5/5||3.5/5||Jan 2017||299|
|5.||Canon 77D||4.5/5||..||82/100||4.5/5||4/5||Feb 2017||899|
|6.||Canon G9 X Mark II||4/5||..||75/100||4.5/5||4.5/5||Jan 2017||529|
|7.||Canon SX730||..||+||..||4/5||4/5||Apr 2017||399|
|8.||Canon SX60||3/5||+ +||75/100||4/5||4.5/5||Sep 2014||549|
|9.||Canon SX1||..||+ +||+||..||3.5/5||Sep 2008||599|
|10.||Fujifilm XP140||..||+||..||3.5/5||4/5||Feb 2019||229|
|11.||Nikon W300||..||+||..||4/5||4/5||May 2017||389|
|12.||Nikon B700||..||+||..||4/5||4/5||Feb 2016||499|
|13.||Olympus TG-6||..||+ +||76/100||4/5||4/5||May 2019||449|
|14.||Olympus TG-5||..||+ +||..||4/5||4/5||May 2017||449|
|15.||Panasonic FZ80||..||+ +||..||4.5/5||4.5/5||Jan 2017||399|
|16.||Sony HX80||..||..||..||..||..||Mar 2016||349|
|17.||Sony HX400V||4/5||+ +||..||4/5||4/5||Feb 2014||499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon SX70 vs Olympus TG-4
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 Model||Canon SX70||Olympus TG-4|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||21-1365mm f/3.4-6.5||25-100mm f/2.0-4.9|
|Launch Date||September 2018||April 2015|
|Launch Price||USD 549||USD 379|
|Sensor Specs||Canon SX70||Olympus TG-4|
|Sensor Format||1/2.3" Sensor||1/2.3" Sensor|
|Sensor Size||6.17 x 4.55 mm||6.17 x 4.55 mm|
|Sensor Area||28.0735 mm2||28.0735 mm2|
|Sensor Diagonal||7.7 mm||7.7 mm|
|Sensor Resolution||20.2 Megapixels||15.9 Megapixels|
|Image Resolution||5184 x 3888 pixels||4608 x 3456 pixels|
|Pixel Pitch||1.18 μm||1.33 μm|
|Pixel Density||71.80 MP/cm2||56.73 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||1080/30p Video|
|ISO Setting||100 - 3,200 ISO||100 - 6,400 ISO|
|Image Processor||DIGIC 8||TruePic VII|
|Screen Specs||Canon SX70||Olympus TG-4|
|Viewfinder Type||Electronic viewfinder||no viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||922k dots||460k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Shooting Specs||Canon SX70||Olympus TG-4|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||10 shutter flaps/s||5 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens-based stabilization||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon SX70||Olympus TG-4|
|External Flash||no Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Canon SX70||Olympus TG-4|
|Environmental Sealing||not weather sealed||Waterproof body (15m)|
|Battery Life (CIPA)||325 shots per charge||380 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
127 x 91 x 117 mm
(5.0 x 3.6 x 4.6 in)
112 x 66 x 31 mm
(4.4 x 2.6 x 1.2 in)
|Camera Weight||608 g (21.4 oz)||247 g (8.7 oz)|
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