Samsung Galaxy M31 vs Samsung Galaxy M31s
A spec-by-spec comparison of the Samsung Galaxy M31 and the Samsung Galaxy M31s, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Our rating | 7/10 | 7/10 |
| Battery | 6,000 mAh | 6,000 mAh |
| Wired charging | 15W | 25W |
| RAM (max) | 8 GB | 8 GB |
| Storage (max) | 128 GB | 128 GB |
| Screen size | 6.4 in | 6.5 in |
| Main camera | 64 MP | 64 MP |
| Weight (lower is lighter) | 191 g | 203 g |
| Released | Mar 2020 | Aug 2020 |
Summary: Samsung Galaxy M31 is ahead on weight (lower is lighter). Samsung Galaxy M31s is ahead on wired charging, screen size.
★ Which should you buy? Samsung Galaxy M31s is the stronger overall pick on the measured specs.
Reviewed by the infozme.com Editorial Team — see how we research & rate phones.
Display
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Type | Super AMOLED | Super AMOLED, Infinity-O Display |
| Size | 6.4 inches, 99.8 cm2 (~84.1% screen-to-body ratio) | 6.5 inches |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) | 1080 x 2400 pixels (FHD+), 20:9 ratio, ~404 ppi density |
| Protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 3 |
| Brightness | 420 nits (typical), 800 nits (peak) | 420 nits (peak) |
| Refresh Rate | — | 60Hz |
Platform
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Chipset | Exynos 9611 (10 nm) | Exynos 9611 (10nm) |
| CPU | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| GPU | Mali-G72 MP3 | Mali-G72 MP3 |
| OS | — | Android 10, upgradable to Android 12, One UI 4.1 |
Memory
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM | 128GB 6GB RAM, 128GB 8GB RAM |
| Type | UFS 2.1 | — |
Main Camera
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Quad | 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF; 8 MP, f/2.2, 123˚ (ultrawide); 5 MP, f/2.4, (macro); 5 MP, f/2.2, (depth) | 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF (Sony IMX682 sensor)
12 MP, f/2.2, 123˚ (ultrawide)
5 MP, f/2.4, (macro)
5 MP, f/2.4, (depth) |
| Features | LED flash, panorama, HDR | LED flash, panorama, HDR, Single Take mode |
| Video | 4K@30fps, 1080p@30fps | 4K@30fps, 1080p@30fps |
Selfie Camera
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Single | 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm |
| Video | 4K@30fps, 1080p@30fps | 4K@30fps, 1080p@30fps |
| Features | — | HDR |
Battery
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Type | Li-Po 6000 mAh, non-removable | Li-Po 6000 mAh, non-removable |
| Charging | 15W wired | 25W wired, reverse wired |
Body
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Dimensions | 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) | 9.3 mm thickness |
| Weight | 191 g (6.74 oz) | 203 g |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame | Glass front (Gorilla Glass 3), 'Glasstic' back (plastic with glass-like finish) |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
Comms
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS, GLONASS, BDS, GALILEO |
| NFC | Yes (market/region dependent) | Yes (region dependent) |
| Radio | FM radio, RDS, recording | FM radio, RDS, recording |
| USB | USB Type-C 2.0 | USB Type-C 2.0, OTG |
Launch
| Samsung Galaxy M31 | Samsung Galaxy M31s |
|---|
| Announced | 2020, February 25 | July 30, 2020 |
| Status | Available. Released 2020, March 05 | Released August 6, 2020 |
| OS | Android 10, upgradable to Android 12, One UI 4.1 | — |
Frequently asked questions
Which is lighter, Samsung Galaxy M31 or Samsung Galaxy M31s?
Samsung Galaxy M31 — 191 g for the Samsung Galaxy M31 versus 203 g for the Samsung Galaxy M31s.
Which is newer, Samsung Galaxy M31 or Samsung Galaxy M31s?
Samsung Galaxy M31s — Mar 2020 for the Samsung Galaxy M31 versus Aug 2020 for the Samsung Galaxy M31s.
Is the Samsung Galaxy M31 or the Samsung Galaxy M31s rated higher?
We rate the Samsung Galaxy M31 7/10 and the Samsung Galaxy M31s 7/10.
Best phone lists →
