Canon R1 vs Panasonic S1 II

The Canon EOS R1 and the Panasonic Lumix DC-S1 II are two digital cameras that were officially introduced, respectively, in July 2024 and May 2025. Both the R1 and the S1 II are mirrorless interchangeable lens cameras that are equipped with a full frame 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

Canon R1		Panasonic S1 II
Mirrorless system camera		Mirrorless system camera
Canon RF mount lenses		Leica L mount lenses
24 MP – Full Frame sensor		24 MP – Full Frame sensor
6K/60p Video		6K/30p Video
ISO 100-102,400 (50 - 409,600)		ISO 100-51,200 (50 - 204,800)
Electronic viewfinder (9440k dots)		Electronic viewfinder (5760k dots)
3.2" LCD – 2100k dots		3.2" LCD – 1840k dots
Swivel touchscreen		Fully flexible touchscreen
12 shutter flaps per second		10 shutter flaps per second
In-body stabilization		In-body stabilization
Weathersealed body		Weathersealed body
1330 shots per battery charge		350 shots per battery charge
158 x 150 x 87 mm, 1115 g		134 x 102 x 92 mm, 800 g

Check R1 price at
amazon.com
Check S1 II price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS R1 and the Panasonic Lumix DC-S1 II? 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 Canon R1 and the Panasonic S1 II 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 Panasonic S1 II is considerably smaller (42 percent) than the Canon R1. Moreover, the S1 II is markedly lighter (28 percent) than the R1. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the R1 gets 1330 shots out of its Canon LP-E19 battery, while the S1 II can take 350 images on a single charge of its Panasonic DMW-BLK22 power pack. As can be seen in the images above, the R1 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the S1 II, Panasonic provides the DMW-BG2 vertical grip as an optional accessory (see here on ebay). The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Canon R1	158 mm	150 mm	87 mm	1115 g	1330	Y	Jul 2024	US$ 6 299	amazon.com
2.		Panasonic S1 II	134 mm	102 mm	92 mm	800 g	350	Y	May 2025	US$ 3 199	amazon.com
3.		Canon R3	150 mm	143 mm	87 mm	1015 g	760	Y	Sep 2021	US$ 5 999	amazon.com
4.		Canon R5 Mark II	138 mm	98 mm	88 mm	746 g	340	Y	Jul 2024	US$ 4 299	amazon.com
5.		Canon R6	138 mm	98 mm	88 mm	680 g	360	Y	Jul 2020	US$ 2 499	amazon.com
6.		Canon R6 Mark II	138 mm	98 mm	88 mm	670 g	450	Y	Nov 2022	US$ 2 499	amazon.com
7.		Canon R8	133 mm	86 mm	70 mm	461 g	220	n	Feb 2023	US$ 1 499	amazon.com
8.		Leica SL3-S	141 mm	108 mm	85 mm	852 g	315	Y	Jan 2025	US$ 5 299	amazon.com
9.		Nikon Z9	149 mm	150 mm	91 mm	1340 g	740	Y	Oct 2021	US$ 5 499	amazon.com
10.		Nikon Zf	144 mm	103 mm	49 mm	710 g	380	Y	Sep 2023	US$ 1 999	amazon.com
11.		Panasonic S1	149 mm	110 mm	97 mm	1017 g	400	Y	Feb 2019	US$ 2 499	ebay.com
12.		Panasonic S1R II	134 mm	102 mm	92 mm	795 g	350	Y	May 2025	US$ 3 299	amazon.com
13.		Panasonic S5	133 mm	98 mm	82 mm	714 g	440	Y	Sep 2020	US$ 1 999	amazon.com
14.		Panasonic S5 II	134 mm	102 mm	90 mm	740 g	370	Y	Jan 2023	US$ 1 999	amazon.com
15.		Sony A9 III	136 mm	97 mm	83 mm	702 g	530	Y	Nov 2023	US$ 5 999	amazon.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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The S1 II was launched at a markedly lower price (by 49 percent) than the R1, 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 sensor inside a digital camera is one of the key determinants 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. 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 associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the S1 II is 1 percent smaller. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Even though the R1 has a slightly larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the R1 has a lower pixel density and larger individual pixels (with a pixel pitch of 6.00μm versus 5.97μm for the S1 II), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the S1 II is a somewhat more recent model (by 9 months) than the R1, and its sensor might 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 S1 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

Unlike the R1, the S1 II has the capacity to capture high quality composite images (96MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Canon EOS R1 has a native sensitivity range from ISO 100 to ISO 102400, which can be extended to ISO 50-409600. The corresponding ISO settings for the Panasonic Lumix DC-S1 II are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the R1 is build around a Stacked BSI-CMOS sensor, while the S1 II uses a 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.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. 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.		Canon R1	Full Frame	24.0	6000	4000	6K/60p	25.4	14.8	3332	97
2.		Panasonic S1 II	Full Frame	24.0	6000	4000	6K/30p	25.4	14.8	3406	97
3.		Canon R3	Full Frame	24.0	6000	4000	6K/60p	25.0	14.7	4086	96
4.		Canon R5 Mark II	Full Frame	44.8	8192	5464	8k/60p	25.4	14.8	3332	97
5.		Canon R6	Full Frame	20.0	5472	3648	4k/60p	24.2	14.3	3394	90
6.		Canon R6 Mark II	Full Frame	24.0	6000	4000	4k/60p	25.4	14.6	3154	96
7.		Canon R8	Full Frame	24.0	6000	4000	4k/60p	24.5	14.7	3295	93
8.		Leica SL3-S	Full Frame	24.0	6000	4000	6K/30p	25.4	14.8	3383	97
9.		Nikon Z9	Full Frame	45.4	8256	5504	8K/30p	26.3	14.4	2451	98
10.		Nikon Zf	Full Frame	24.3	6048	4024	4K/60p	25.4	14.7	3243	96
11.		Panasonic S1	Full Frame	24.0	6000	4000	4K/60p	25.2	14.5	3333	95
12.		Panasonic S1R II	Full Frame	44.2	8144	5424	8K/30p	25.4	14.8	3406	97
13.		Panasonic S5	Full Frame	24.0	6000	4000	4K/60p	25.1	14.5	2697	94
14.		Panasonic S5 II	Full Frame	24.0	6000	4000	6K/30p	25.4	14.6	3158	96
15.		Sony A9 III	Full Frame	24.0	6000	4000	4K/120p	25.4	14.7	3243	96
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. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the S1 II provides a better video resolution than the R1. It can shoot movie footage at 6K/30p, while the Canon is limited to 6K/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the R1 offers a substantially higher resolution than the one in the S1 II (9440k vs 5760k dots). The following table reports on some other key feature differences and similarities of the Canon R1, the Panasonic S1 II, 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.		Canon R1	9440	Y	3.2 / 2100	swivel	Y	1/8000s	12.0/s	n	Y
2.		Panasonic S1 II	5760	n	3.2 / 1840	full-flex	Y	1/8000s	10.0/s	n	Y
3.		Canon R3	5760	Y	3.2 / 4150	swivel	Y	1/8000s	12.0/s	n	Y
4.		Canon R5 Mark II	5760	Y	3.2 / 2100	swivel	Y	1/8000s	12.0/s	n	Y
5.		Canon R6	3690	n	3.0 / 1620	swivel	Y	1/8000s	12.0/s	n	Y
6.		Canon R6 Mark II	3690	n	3.0 / 1620	swivel	Y	1/8000s	12.0/s	n	Y
7.		Canon R8	2360	n	3.0 / 1620	swivel	Y	1/4000s	6.0/s	n	n
8.		Leica SL3-S	5760	Y	3.2 / 2333	tilting	Y	1/8000s	30.0/s	n	Y
9.		Nikon Z9	3690	Y	3.2 / 2089	full-flex	Y	1/32000s	30.0/s	n	Y
10.		Nikon Zf	3690	n	3.2 / 2100	swivel	Y	1/8000s	14.0/s	n	Y
11.		Panasonic S1	5760	Y	3.2 / 2100	full-flex	Y	1/8000s	9.0/s	n	Y
12.		Panasonic S1R II	5760	n	3.2 / 1840	full-flex	Y	1/8000s	9.0/s	n	Y
13.		Panasonic S5	2360	n	3.0 / 1840	swivel	Y	1/8000s	7.0/s	n	Y
14.		Panasonic S5 II	3680	n	3.0 / 1840	swivel	Y	1/8000s	9.0/s	n	Y
15.		Sony A9 III	9440	n	3.2 / 2100	full-flex	Y	1/80000s	120.0/s	n	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the R1, but is missing on the S1 II is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

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, both cameras under consideration feature an 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).

The Canon R1 and the Panasonic S1 II 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 R1 and the S1 II write their files to CFexpress (type B) or SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 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 Canon EOS R1 and Panasonic Lumix DC-S1 II 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.		Canon R1	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
2.		Panasonic S1 II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
3.		Canon R3	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
4.		Canon R5 Mark II	Y	mono / mono	Y	Y	full	3.2	Y	-	Y
5.		Canon R6	Y	mono / mono	Y	Y	micro	3.2	Y	-	Y
6.		Canon R6 Mark II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
7.		Canon R8	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
8.		Leica SL3-S	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
9.		Nikon Z9	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
10.		Nikon Zf	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
11.		Panasonic S1	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
12.		Panasonic S1R II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
13.		Panasonic S5	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
14.		Panasonic S5 II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
15.		Sony A9 III	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the R1 and the S1 II are recent models that are part of the current product line-up. The S1 II replaced the earlier Panasonic S1, while the R1 does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Panasonic websites.

Review summary

So what is the bottom line? Is there a clear favorite between the Canon R1 and the Panasonic S1 II? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Reasons to prefer the Canon EOS R1:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• More detailed viewfinder: Has higher resolution electronic viewfinder (9440k vs 5760k dots).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.9x vs 0.78x).
• Easier setting verification: Features an LCD display on top to control shooting parameters.
• More detailed LCD: Has a higher resolution rear screen (2100k vs 1840k dots).
• Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
• More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
• Longer lasting: Can take more shots (1330 versus 350) on a single battery charge.
• More heavily discounted: Has been on the market for longer (launched in July 2024).

Arguments in favor of the Panasonic Lumix DC-S1 II:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• High quality composites: Can combine several shots after pixel-shifting its sensor.
• Better video: Provides higher definition movie capture (6K/30p vs 6K/60p).
• More compact: Is smaller (134x102mm vs 158x150mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 315g or 28 percent) and is thus easier to take along.
• More affordable: Was introduced into a lower priced category (49 percent cheaper at launch).
• More modern: Was introduced somewhat (9 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the R1 emerges as the winner of the contest (9 : 7 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.

How about other alternatives? Do the specifications of the Canon R1 and the Panasonic S1 II 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 remains incomplete and does no justice, for example, to the way the R1 or the S1 II 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.

Expert reviews

This is where reviews by experts come in. 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.		Canon R1	..	..	..	..	..	..	Jul 2024	US$ 6 299	amazon.com
2.		Panasonic S1 II	..	..	..	..	..	..	May 2025	US$ 3 199	amazon.com
3.		Canon R3	5/5	o	4.5/5	..	5/5	4.5/5	Sep 2021	US$ 5 999	amazon.com
4.		Canon R5 Mark II	..	..	..	93/100	..	..	Jul 2024	US$ 4 299	amazon.com
5.		Canon R6	5/5	+ +	4/5	90/100	4.5/5	5/5	Jul 2020	US$ 2 499	amazon.com
6.		Canon R6 Mark II	5/5	+ +	4.5/5	91/100	4.5/5	5/5	Nov 2022	US$ 2 499	amazon.com
7.		Canon R8	4.5/5	+ +	4.5/5	87/100	4/5	4.5/5	Feb 2023	US$ 1 499	amazon.com
8.		Leica SL3-S	..	..	..	..	..	..	Jan 2025	US$ 5 299	amazon.com
9.		Nikon Z9	5/5	..	4.5/5	94/100	5/5	5/5	Oct 2021	US$ 5 499	amazon.com
10.		Nikon Zf	4.5/5	..	4.5/5	90/100	4.5/5	5/5	Sep 2023	US$ 1 999	amazon.com
11.		Panasonic S1	4.5/5	+ +	4.5/5	88/100	4.5/5	4/5	Feb 2019	US$ 2 499	ebay.com
12.		Panasonic S1R II	..	..	..	..	..	..	May 2025	US$ 3 299	amazon.com
13.		Panasonic S5	4.5/5	+ +	4.5/5	88/100	4.5/5	4.5/5	Sep 2020	US$ 1 999	amazon.com
14.		Panasonic S5 II	4.5/5	+ +	5/5	90/100	4.5/5	5/5	Jan 2023	US$ 1 999	amazon.com
15.		Sony A9 III	4.5/5	..	..	91/100	..	..	Nov 2023	US$ 5 999	amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Check R1 price at
amazon.com
Check S1 II price at
amazon.com

Other camera comparisons

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Check R1 price at
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