Ricoh GR IIIx vs Sony A7

The Ricoh GR IIIx and the Sony Alpha A7 are two digital cameras that were officially introduced, respectively, in September 2021 and October 2013. The GR IIIx is a fixed lens compact, while the A7 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (GR IIIx) and a full frame (A7) 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

Ricoh GR IIIx		Sony A7
Fixed lens compact camera		Mirrorless system camera
40mm f/2.8		Sony E mount lenses
24 MP – APS-C sensor		24 MP – Full Frame sensor
1080/60p Video		1080/60p Video
ISO 100-102,400		ISO 100-25,600 (50 - 51,200)
Viewfinder optional		Electronic viewfinder (2400k dots)
3.0" LCD – 1037k dots		3.0" LCD – 1230k dots
Fixed touchscreen		Tilting screen (no touchscreen)
4 shutter flaps per second		5 shutter flaps per second
In-body stabilization		Lens stabilization only
not weather sealed		Weathersealed body
200 shots per battery charge		340 shots per battery charge
109 x 62 x 35 mm, 262 g		127 x 94 x 48 mm, 474 g

Check GR IIIx price at
amazon.com
Check A7 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Ricoh GR IIIx and the Sony Alpha A7? 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

An illustration of the physical size and weight of the Ricoh GR IIIx and the Sony A7 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 is considerably larger (77 percent) than the Ricoh GR IIIx. It is noteworthy in this context that the A7 is splash and dust-proof, while the GR IIIx does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the GR IIIx has a lens built in, whereas the A7 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A7 and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the GR IIIx gets 200 shots out of its Ricoh DB-110 battery, while the A7 can take 340 images on a single charge of its Sony NP-FW50 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Ricoh GR IIIx	109 mm	62 mm	35 mm	262 g	200	n	Sep 2021	US$ 999	amazon.com
2.		Sony A7	127 mm	94 mm	48 mm	474 g	340	Y	Oct 2013	US$ 1 699	ebay.com
3.		Fujifilm X-S10	126 mm	85 mm	65 mm	465 g	325	n	Oct 2020	US$ 999	amazon.com
4.		Panasonic LX15	106 mm	60 mm	42 mm	310 g	260	n	Sep 2016	US$ 699	amazon.com
5.		Panasonic TZ100	111 mm	65 mm	44 mm	312 g	300	n	Jan 2016	US$ 699	ebay.com
6.		Ricoh GR II	117 mm	63 mm	35 mm	251 g	320	n	Jun 2015	US$ 699	ebay.com
7.		Ricoh GR III	109 mm	62 mm	33 mm	257 g	200	n	Feb 2019	US$ 899	amazon.com
8.		Samsung NX1	139 mm	102 mm	66 mm	550 g	500	Y	Sep 2014	US$ 1 499	ebay.com
9.		Sony A7 II	127 mm	96 mm	60 mm	599 g	350	Y	Nov 2014	US$ 1 999	ebay.com
10.		Sony A7C	124 mm	71 mm	60 mm	509 g	740	Y	Sep 2020	US$ 1 799	amazon.com
11.		Sony A7R	127 mm	94 mm	48 mm	465 g	340	Y	Oct 2013	US$ 2 299	ebay.com
12.		Sony A7S	127 mm	94 mm	48 mm	489 g	380	Y	Apr 2014	US$ 2 499	ebay.com
13.		Sony RX100 IV	102 mm	58 mm	41 mm	298 g	280	n	Jun 2015	US$ 999	ebay.com
14.		Sony RX100 V	102 mm	58 mm	41 mm	299 g	220	n	Oct 2016	US$ 999	ebay.com
15.		Sony RX100 VI	102 mm	58 mm	43 mm	301 g	240	n	Jun 2018	US$ 1 199	ebay.com
16.		Sony RX100 VII	102 mm	58 mm	43 mm	302 g	260	n	Jul 2019	US$ 1 199	amazon.com
17.		Sony ZV-1	105 mm	60 mm	44 mm	294 g	260	n	May 2020	US$ 799	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GR IIIx was launched at a lower price than the A7, despite having a lens built in. 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Ricoh GR IIIx features an APS-C sensor and the Sony A7 a full frame sensor. The sensor area in the A7 is 133 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.

Even though the A7 has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the A7 has a lower pixel density and larger individual pixels (with a pixel pitch of 5.97μm versus 3.91μm for the GR IIIx), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the GR IIIx is much more recent (by 7 years and 10 months) than the A7, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the GR IIIx has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The Ricoh GR IIIx has a native sensitivity range from ISO 100 to ISO 102400. The corresponding ISO settings for the Sony Alpha A7 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

For many cameras, data on sensor performance has been reported by DXO Mark. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Ricoh GR IIIx	APS-C	24.0	6000	4000	1080/60p	24.2	13.8	2146	85
2.		Sony A7	Full Frame	24.0	6000	4000	1080/60p	24.8	14.2	2248	90
3.		Fujifilm X-S10	APS-C	26.0	6240	4160	4K/30p	24.2	13.7	2057	85
4.		Panasonic LX15	1-inch	20.0	5472	3648	4K/30p	21.9	12.0	315	62
5.		Panasonic TZ100	1-inch	20.0	5472	3648	4K/30p	22.8	12.5	559	70
6.		Ricoh GR II	APS-C	16.1	4928	3264	1080/30p	23.6	13.7	1078	80
7.		Ricoh GR III	APS-C	24.0	6000	4000	1080/60p	24.1	13.5	1897	83
8.		Samsung NX1	APS-C	28.0	6480	4320	4K/30p	24.2	13.2	1363	83
9.		Sony A7 II	Full Frame	24.0	6000	4000	1080/60p	24.9	13.6	2449	90
10.		Sony A7C	Full Frame	24.0	6000	4000	4K/30p	25.0	14.7	3407	95
11.		Sony A7R	Full Frame	36.2	7360	4912	1080/60p	25.6	14.1	2746	95
12.		Sony A7S	Full Frame	12.0	4240	2832	1080/60p	23.9	13.2	3702	87
13.		Sony RX100 IV	1-inch	20.0	5472	3648	4K/30p	22.8	12.6	591	70
14.		Sony RX100 V	1-inch	20.0	5472	3648	4K/30p	22.8	12.4	586	70
15.		Sony RX100 VI	1-inch	20.0	5472	3648	4K/30p	22.1	12.3	478	64
16.		Sony RX100 VII	1-inch	20.0	5472	3648	4K/30p	21.8	12.4	418	63
17.		Sony ZV-1	1-inch	20.0	5472	3648	4K/30p	22.2	12.6	669	66
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7 has an electronic viewfinder (2400k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GR IIIx relies on live view and the rear LCD for framing. That said, the GR IIIx can be equipped with an optional viewfinder – the GV-3. The table below summarizes some of the other core capabilities of the Ricoh GR IIIx and Sony A7 in connection with corresponding information for a sample of similar cameras.

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.		Ricoh GR IIIx	optional	n	3.0 / 1037	fixed	Y	1/4000s	4.0/s	n	Y
2.		Sony A7	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	n
3.		Fujifilm X-S10	2360	n	3.0 / 1040	swivel	Y	1/4000s	8.0/s	Y	Y
4.		Panasonic LX15	none	n	3.0 / 1040	tilting	Y	1/4000s	10.0/s	Y	Y
5.		Panasonic TZ100	1166	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	Y	Y
6.		Ricoh GR II	optional	n	3.0 / 1230	fixed	n	1/4000s	4.0/s	Y	n
7.		Ricoh GR III	optional	n	3.0 / 1037	fixed	Y	1/4000s	4.0/s	n	Y
8.		Samsung NX1	2360	Y	3.0 / 1036	tilting	Y	1/8000s	15.0/s	Y	n
9.		Sony A7 II	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	Y
10.		Sony A7C	2360	n	3.0 / 922	swivel	Y	1/4000s	10.0/s	n	Y
11.		Sony A7R	2400	n	3.0 / 1230	tilting	n	1/8000s	4.0/s	n	n
12.		Sony A7S	2400	n	3.0 / 921	tilting	n	1/8000s	5.0/s	n	n
13.		Sony RX100 IV	2359	n	3.0 / 1228	tilting	n	1/2000s	16.0/s	Y	Y
14.		Sony RX100 V	2359	n	3.0 / 1229	tilting	n	1/2000s	24.0/s	Y	Y
15.		Sony RX100 VI	2359	n	3.0 / 1229	tilting	Y	1/2000s	24.0/s	Y	Y
16.		Sony RX100 VII	2359	n	3.0 / 921	tilting	Y	1/2000s	90.0/s	Y	Y
17.		Sony ZV-1	none	n	3.0 / 922	swivel	Y	1/2000s	24.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GR IIIx has a touchscreen, while the A7 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Ricoh GR IIIx 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.

The GR IIIx writes its imaging data to SDXC cards, while the A7 uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 Ricoh GR IIIx and Sony Alpha A7 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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.		Ricoh GR IIIx	Y	stereo / mono	-	-	-	3.0	Y	-	Y
2.		Sony A7	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
3.		Fujifilm X-S10	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
4.		Panasonic LX15	-	stereo / mono	-	-	micro	2.0	Y	-	-
5.		Panasonic TZ100	-	stereo / mono	-	-	micro	2.0	Y	-	-
6.		Ricoh GR II	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
7.		Ricoh GR III	Y	stereo / mono	-	-	-	3.0	Y	-	Y
8.		Samsung NX1	Y	stereo / mono	Y	Y	micro	3.0	Y	Y	Y
9.		Sony A7 II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
10.		Sony A7C	Y	stereo / mono	Y	Y	micro	3.2	Y	Y	Y
11.		Sony A7R	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
12.		Sony A7S	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
13.		Sony RX100 IV	-	stereo / mono	-	-	micro	2.0	Y	Y	-
14.		Sony RX100 V	-	stereo / mono	-	-	micro	2.0	Y	Y	-
15.		Sony RX100 VI	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
16.		Sony RX100 VII	-	stereo / mono	Y	-	micro	2.0	Y	Y	Y
17.		Sony ZV-1	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y

It is notable that the A7 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The GR IIIx does not feature such a mic input.

The GR IIIx is a recent model that features in the current product line-up of Ricoh. In contrast, the A7 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7 was succeeded by the Sony A7 II. Further information on the features and operation of the GR IIIx and A7 can be found, respectively, in the Ricoh GR IIIx Manual (free pdf) or the online Sony A7 Manual.

Review summary

So what is the bottom line? Which of the two cameras – the Ricoh GR IIIx or the Sony A7 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

Reasons to prefer the Ricoh GR IIIx:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Ready to shoot: Has a lens built-in, whereas the A7 requires a separate lens.
• More compact: Is smaller (109x62mm vs 127x94mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7).
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Reflects 7 years and 10 months of technical progress since the A7 launch.

Advantages of the Sony Alpha A7:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• 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 (1230k vs 1037k dots).
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (5 vs 4 flaps/sec) to capture the decisive moment.
• More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
• Longer lasting: Gets more shots (340 versus 200) out of a single battery charge.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More heavily discounted: Has been around for much longer (launched in October 2013).

If the number of relative strengths (bullet points above) is taken as a guide, the A7 emerges as the winner of the match-up (13 : 11 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 Ricoh GR IIIx and the Sony A7 place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best Mirrorless Interchangeable Lens Camera listings 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 remains incomplete and does no justice, for example, to the way the GR IIIx or the A7 perform in practice. 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 why expert reviews 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], 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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price	Street Price
1.		Ricoh GR IIIx	..	..	4.5/5	..	..	..	Sep 2021	US$ 999	amazon.com
2.		Sony A7	5/5	+ +	..	80/100	5/5	5/5	Oct 2013	US$ 1 699	ebay.com
3.		Fujifilm X-S10	5/5	..	4.5/5	86/100	4.5/5	4.5/5	Oct 2020	US$ 999	amazon.com
4.		Panasonic LX15	..	+ +	4/5	81/100	4/5	4.5/5	Sep 2016	US$ 699	amazon.com
5.		Panasonic TZ100	4.5/5	+ +	..	82/100	4.5/5	4.5/5	Jan 2016	US$ 699	ebay.com
6.		Ricoh GR II	..	..	..	..	4.5/5	4.5/5	Jun 2015	US$ 699	ebay.com
7.		Ricoh GR III	4/5	..	3.5/5	81/100	4/5	..	Feb 2019	US$ 899	amazon.com
8.		Samsung NX1	5/5	..	..	87/100	5/5	5/5	Sep 2014	US$ 1 499	ebay.com
9.		Sony A7 II	5/5	+	4/5	82/100	4.5/5	5/5	Nov 2014	US$ 1 999	ebay.com
10.		Sony A7C	3.5/5	..	3.5/5	86/100	4/5	4/5	Sep 2020	US$ 1 799	amazon.com
11.		Sony A7R	5/5	+ +	..	82/100	4.5/5	5/5	Oct 2013	US$ 2 299	ebay.com
12.		Sony A7S	4/5	..	..	86/100	4.5/5	5/5	Apr 2014	US$ 2 499	ebay.com
13.		Sony RX100 IV	4.5/5	+ +	..	85/100	4/5	4.5/5	Jun 2015	US$ 999	ebay.com
14.		Sony RX100 V	4.5/5	+ +	..	83/100	4/5	4.5/5	Oct 2016	US$ 999	ebay.com
15.		Sony RX100 VI	4.5/5	+ +	..	83/100	4/5	4.5/5	Jun 2018	US$ 1 199	ebay.com
16.		Sony RX100 VII	4.5/5	..	4/5	..	4/5	5/5	Jul 2019	US$ 1 199	amazon.com
17.		Sony ZV-1	4/5	+	4/5	85/100	4/5	4.5/5	May 2020	US$ 799	ebay.com
Note: (+ +) 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Check GR IIIx price at
amazon.com
Check A7 offers at
ebay.com

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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

~

Check GR IIIx price at
amazon.com
Check A7 offers at
ebay.com

Did you notice an error on this page? If so, please get in touch, so that we can correct the information.