Ricoh GR IIIx vs YI M1

The Ricoh GR IIIx and the YI M1 are two digital cameras that were announced, respectively, in September 2021 and September 2016. The GR IIIx is a fixed lens compact, while the M1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (GR IIIx) and a Four Thirds (M1) sensor. The Ricoh has a resolution of 24 megapixels, whereas the YI provides 20.2 MP.

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

Headline Specifications

Ricoh GR IIIx		YI M1
Fixed lens compact camera		Mirrorless system camera
40mm f/2.8		Micro Four Thirds lenses
24 MP – APS-C sensor		20.2 MP – Four Thirds sensor
1080/60p Video		4K/30p Video
ISO 100-102,400		ISO 100-25,600
Viewfinder optional		No viewfinder, LCD framing
3.0" LCD – 1037k dots		3.0" LCD – 1040k dots
Fixed touchscreen		Fixed touchscreen
4 shutter flaps per second		5 shutter flaps per second
In-body stabilization		Lens stabilization only
200 shots per battery charge		450 shots per battery charge
109 x 62 x 35 mm, 262 g		114 x 64 x 34 mm, 281 g

Check GR IIIx price at
amazon.com
Check M1 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Ricoh GR IIIx and the YI M1? 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 Ricoh GR IIIx and the YI M1 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 M1 can be obtained in two different colors (black, silver), while the GR IIIx 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 YI M1 is notably larger (8 percent) than the Ricoh GR IIIx. In this context, it is worth noting that neither the GR IIIx nor the M1 are weather-sealed.

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 M1 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 M1 and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the GR IIIx gets 200 shots out of its Ricoh DB-110 battery, while the M1 can take 450 images on a single charge of its YI BXM-10 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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	EUR 999	amazon.com
2.		YI M1	114 mm	64 mm	34 mm	281 g	450	n	Sep 2016	EUR 349	ebay.com
3.		Canon SX420	104 mm	69 mm	85 mm	325 g	195	n	Jan 2016	EUR 299	ebay.com
4.		Canon SX710	113 mm	66 mm	35 mm	269 g	230	n	Jan 2015	EUR 299	ebay.com
5.		Canon SX730	110 mm	64 mm	40 mm	300 g	250	n	Apr 2017	EUR 399	ebay.com
6.		Fujifilm X-A3	117 mm	67 mm	40 mm	339 g	410	n	Aug 2016	EUR 449	ebay.com
7.		Fujifilm X-S10	126 mm	85 mm	65 mm	465 g	325	n	Oct 2020	EUR 999	amazon.com
8.		Nikon 1 J5	98 mm	60 mm	32 mm	231 g	250	n	Apr 2015	EUR 449	ebay.com
9.		Panasonic LX15	106 mm	60 mm	42 mm	310 g	260	n	Sep 2016	EUR 699	amazon.com
10.		Panasonic TZ100	111 mm	65 mm	44 mm	312 g	300	n	Jan 2016	EUR 699	ebay.com
11.		Ricoh GR II	117 mm	63 mm	35 mm	251 g	320	n	Jun 2015	EUR 799	ebay.com
12.		Ricoh GR III	109 mm	62 mm	33 mm	257 g	200	n	Feb 2019	EUR 899	amazon.com
13.		Sony RX100 IV	102 mm	58 mm	41 mm	298 g	280	n	Jun 2015	EUR 1 149	ebay.com
14.		Sony RX100 V	102 mm	58 mm	41 mm	299 g	220	n	Oct 2016	EUR 1 199	ebay.com
15.		Sony RX100 VI	102 mm	58 mm	43 mm	301 g	240	n	Jun 2018	EUR 1 299	ebay.com
16.		Sony RX100 VII	102 mm	58 mm	43 mm	302 g	260	n	Jul 2019	EUR 1 299	amazon.com
17.		Sony ZV-1	105 mm	60 mm	44 mm	294 g	260	n	May 2020	EUR 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

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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 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 YI M1 a Four Thirds sensor. The sensor area in the M1 is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the GR IIIx has a native 3:2 aspect ratio, while the one in the M1 offers a 4:3 aspect.

With 24MP, the GR IIIx offers a higher resolution than the M1 (20.2MP), but the GR IIIx nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 3.34μm for the M1) due to its larger sensor. Moreover, the GR IIIx is a much more recent model (by 4 years and 11 months) than the M1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. 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 resolution advantage of the Ricoh GR IIIx implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GR IIIx for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the YI M1 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

The GR IIIx has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Ricoh GR IIIx has a native sensitivity range from ISO 100 to ISO 102400. The corresponding ISO settings for the YI M1 are ISO 100 to ISO 25600 (no boost).

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.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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.		YI M1	Four Thirds	20.2	5184	3888	4K/30p	23.0	12.6	1030	73
3.		Canon SX420	1/2.3	19.9	5152	3864	720/25p	20.3	11.7	806	48
4.		Canon SX710	1/2.3	20.2	5184	3888	1080/60p	20.2	11.6	712	47
5.		Canon SX730	1/2.3	20.2	5184	3888	1080/60p	20.5	11.9	924	50
6.		Fujifilm X-A3	APS-C	24.0	6000	4000	1080/60p	23.8	13.1	1663	81
7.		Fujifilm X-S10	APS-C	26.0	6240	4160	4K/30p	24.2	13.7	2057	85
8.		Nikon 1 J5	1-inch	20.7	5568	3712	4K/15p	21.1	12.0	479	65
9.		Panasonic LX15	1-inch	20.0	5472	3648	4K/30p	21.9	12.0	315	62
10.		Panasonic TZ100	1-inch	20.0	5472	3648	4K/30p	22.8	12.5	559	70
11.		Ricoh GR II	APS-C	16.1	4928	3264	1080/30p	23.6	13.7	1078	80
12.		Ricoh GR III	APS-C	24.0	6000	4000	1080/60p	24.1	13.5	1897	83
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 cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the M1 provides a better video resolution than the GR IIIx. It can shoot movie footage at 4K/30p, while the Ricoh is limited to 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The GR IIIx and the M1 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. That said, the GR IIIx can be equipped with an optional viewfinder – the GV-3. The following table reports on some other key feature differences and similarities of the Ricoh GR IIIx, the YI M1, and comparable 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.		YI M1	none	n	3.0 / 1040	fixed	Y	1/4000s	5.0/s	n	n
3.		Canon SX420	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
4.		Canon SX710	none	n	3.0 / 922	fixed	n	1/3200s	6.0/s	Y	Y
5.		Canon SX730	none	n	3.0 / 922	tilting	n	1/3200s	5.9/s	Y	Y
6.		Fujifilm X-A3	none	n	3.0 / 1040	tilting	Y	1/4000s	6.0/s	Y	n
7.		Fujifilm X-S10	2360	n	3.0 / 1040	swivel	Y	1/4000s	8.0/s	Y	Y
8.		Nikon 1 J5	none	n	3.0 / 1037	tilting	Y	1/4000s	60.0/s	Y	n
9.		Panasonic LX15	none	n	3.0 / 1040	tilting	Y	1/4000s	10.0/s	Y	Y
10.		Panasonic TZ100	1166	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	Y	Y
11.		Ricoh GR II	optional	n	3.0 / 1230	fixed	n	1/4000s	4.0/s	Y	n
12.		Ricoh GR III	optional	n	3.0 / 1037	fixed	Y	1/4000s	4.0/s	n	Y
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.

The Ricoh GR IIIx and the YI M1 both have 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.

Concerning the storage of imaging data, both the GR IIIx and the M1 write their files to SDXC cards. The GR IIIx supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the M1 cannot take advantage of Ultra High Speed SD 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 Ricoh GR IIIx and YI M1 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.		YI M1	Y	stereo / mono	-	-	micro	2.0	Y	-	Y
3.		Canon SX420	-	mono / mono	-	-	-	2.0	Y	Y	-
4.		Canon SX710	-	stereo / mono	-	-	micro	2.0	Y	Y	-
5.		Canon SX730	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
6.		Fujifilm X-A3	Y	stereo / mono	-	-	micro	2.0	Y	-	-
7.		Fujifilm X-S10	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
8.		Nikon 1 J5	-	stereo / mono	-	-	micro	2.0	Y	Y	-
9.		Panasonic LX15	-	stereo / mono	-	-	micro	2.0	Y	-	-
10.		Panasonic TZ100	-	stereo / mono	-	-	micro	2.0	Y	-	-
11.		Ricoh GR II	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
12.		Ricoh GR III	Y	stereo / mono	-	-	-	3.0	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

The GR IIIx is a recent model that features in the current product line-up of Ricoh. In contrast, the M1 has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the M1 from YI. Further information on the features and operation of the GR IIIx and M1 can be found, respectively, in the Ricoh GR IIIx Manual (free pdf) or the online YI M1 Manual.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Ricoh GR IIIx and the YI M1? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Reasons to prefer the Ricoh GR IIIx:

• More detail: Offers more megapixels (24 vs 20.2MP) with a 11% higher linear resolution.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better image quality: Features a larger and more technologically advanced imaging sensor.
• Richer colors: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• More framing options: Can be equipped with a hotshoe-mounted accessory-viewfinder.
• Ready to shoot: Has a lens built-in, whereas the M1 requires a separate lens.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the M1).
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More modern: Reflects 4 years and 11 months of technical progress since the M1 launch.

Arguments in favor of the YI M1:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
• 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 (450 versus 200) out of a single battery charge.
• More heavily discounted: Has been around for much longer (launched in September 2016).

If the count of relative strengths (bullet points above) is taken as a measure, the GR IIIx is the clear winner of the match-up (14 : 6 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 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 YI M1 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 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 GR IIIx or the M1 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 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], 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	EUR 999	amazon.com
2.		YI M1	..	..	..	69/100	..	..	Sep 2016	EUR 349	ebay.com
3.		Canon SX420	..	..	..	..	..	3/5	Jan 2016	EUR 299	ebay.com
4.		Canon SX710	..	+	..	..	4/5	3.5/5	Jan 2015	EUR 299	ebay.com
5.		Canon SX730	..	+	..	..	4/5	4/5	Apr 2017	EUR 399	ebay.com
6.		Fujifilm X-A3	..	..	..	74/100	4.5/5	4/5	Aug 2016	EUR 449	ebay.com
7.		Fujifilm X-S10	5/5	..	4.5/5	86/100	4.5/5	4.5/5	Oct 2020	EUR 999	amazon.com
8.		Nikon 1 J5	..	..	..	..	4.5/5	4.5/5	Apr 2015	EUR 449	ebay.com
9.		Panasonic LX15	..	+ +	4/5	81/100	4/5	4.5/5	Sep 2016	EUR 699	amazon.com
10.		Panasonic TZ100	4.5/5	+ +	..	82/100	4.5/5	4.5/5	Jan 2016	EUR 699	ebay.com
11.		Ricoh GR II	..	..	..	..	4.5/5	4.5/5	Jun 2015	EUR 799	ebay.com
12.		Ricoh GR III	4/5	..	3.5/5	81/100	4/5	..	Feb 2019	EUR 899	amazon.com
13.		Sony RX100 IV	4.5/5	+ +	..	85/100	4/5	4.5/5	Jun 2015	EUR 1 149	ebay.com
14.		Sony RX100 V	4.5/5	+ +	..	83/100	4/5	4.5/5	Oct 2016	EUR 1 199	ebay.com
15.		Sony RX100 VI	4.5/5	+ +	..	83/100	4/5	4.5/5	Jun 2018	EUR 1 299	ebay.com
16.		Sony RX100 VII	4.5/5	..	4/5	..	4/5	5/5	Jul 2019	EUR 1 299	amazon.com
17.		Sony ZV-1	4/5	+	4/5	85/100	4/5	4.5/5	May 2020	EUR 799	ebay.com
Note: (+ +) 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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amazon.com
Check M1 offers at
ebay.com

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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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