Samsung Galaxy M31s vs Samsung Galaxy M21s
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| PHONES | ||
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| Phone Names | Samsung Galaxy M31s | Samsung Galaxy M21s |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 |
| Speed | HSPA, LTE | HSPA, LTE |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| Launch | ||
|---|---|---|
| Announced | 2020, July 30. Released 2020, August 06 | 2020, November 06. Released 2020, November 06 |
| Status | Discontinued | Discontinued |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| Dimensions | 159.3 x 74.4 x 9.3 mm (6.27 x 2.93 x 0.37 in) | 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) |
| Keyboard | QWERTY | - |
| SIM | · Nano-SIM· Nano-SIM + Nano-SIM | · Nano-SIM· Nano-SIM + Nano-SIM |
| Weight | 203 g (7.16 oz) | 191 g (6.74 oz) |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 3 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) | 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) |
| Size | 6.5 inches, 102.0 cm2 (~86.1% screen-to-body ratio) | 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio) |
| Type | Super AMOLED | Super AMOLED, 420 nits (peak) |
| Platform | ||
|---|---|---|
| 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) |
| Chipset | Exynos 9611 (10 nm) | Exynos 9611 (10 nm) |
| GPU | Mali-G72 MP3 | Mali-G72 MP3 |
| OS | Android 10, upgradable to Android 12, One UI 4.1 | Android 10, One UI 2.5 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 128GB 6GB RAM, 128GB 8GB RAM | 64GB 4GB RAM, 128GB 6GB RAM |
| - | eMMC 5.1 | |
| Main Camera | ||
|---|---|---|
| Features | LED flash, panorama, HDR | LED flash, panorama, HDR |
| Single | 3.15 MP, AF | - |
| Triple | 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens | 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm Auxiliary lens |
| Video | 4K@30fps, 1080p@30fps, gyro-EIS | 4K@30fps, 1080p@30fps, gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | HDR | HDR |
| Single | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm | 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm |
| Video | 4K@30fps, 1080p@30fps | 1080p@30fps |
| No | - | |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms | ||
|---|---|---|
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE |
| NFC | Yes (market/region dependent) | No |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS, GLONASS, GALILEO, BDS |
| Radio | FM radio, RDS, recording | FM radio |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0 |
| 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 |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, compass | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| MP4/H.264 player MP3/WAV/eAAC+ player Organizer Voice memo Predictive text input | - | |
| Battery | ||
|---|---|---|
| Charging | 25W wired 4.5W reverse wired | 15W wired |
| Stand-by | Up to 288 h | - |
| Talk time | Up to 7 h | - |
| Type | Li-Po 6000 mAh | Li-Po 6000 mAh |
| Misc | ||
|---|---|---|
| Colors | Mirage Black, Mirage Blue | Blue, Black |
| Models | SM-M317F, SM-M317F/DS | SM-F415F, SM-F415F/DS |
| Price | About 300 EUR | About 230 EUR |
| SAR | 1.38 W/kg (head) | 0.38 W/kg (head) |
| SAR EU | - | 0.48 W/kg (head) 1.13 W/kg (body) |