Samsung Galaxy A31 vs vivo Y51 (2020, December)
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| PHONES | ||
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| Phone Names | Samsung Galaxy A31 | vivo Y51 (2020, December) |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 - SM-A315F | HSDPA 850 / 900 / 2100 |
| 4G bands | 1, 2, 3, 5, 7, 8, 20, 38, 40, 41 - SM-A315F | 1, 3, 5, 8, 40 |
| Speed | HSPA, LTE | HSPA, LTE |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| Launch | ||
|---|---|---|
| Announced | 2020, March 24. Released 2020, April 27 | 2020, December 03. Released 2020, December 07 |
| Status | Discontinued | Discontinued |
| Body | ||
|---|---|---|
| Dimensions | 159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in) | 163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in) |
| SIM | · Nano-SIM· Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 185 g (6.53 oz) | 188 g (6.63 oz) |
| Display | ||
|---|---|---|
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~411 ppi density) | 1080 x 2408 pixels, 20:9 ratio (~401 ppi density) |
| Size | 6.4 inches, 98.9 cm2 (~84.9% screen-to-body ratio) | 6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio) |
| Type | Super AMOLED | IPS LCD |
| Platform | ||
|---|---|---|
| CPU | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Mediatek MT6768 Helio P65 (12 nm) | Qualcomm SDM665 Snapdragon 665 (11 nm) |
| GPU | Mali-G52 MC2 | Adreno 610 |
| OS | Android 10, upgradable to Android 12, One UI 4.1 | Android 11, Funtouch 11 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM | 128GB 8GB RAM |
| Main Camera | ||
|---|---|---|
| Features | LED flash, panorama, HDR | LED flash, HDR, panorama |
| Quad | 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 123˚, (ultrawide), 1/4.0", 1.12µm 5 MP (macro) Auxiliary lens | - |
| Triple | - | 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚, (ultrawide), 1/4.0", 1.12µm 2 MP (macro) |
| Video | 1080p@30fps | 4K@30fps, 1080p@30fps, gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | - | HDR |
| Single | 20 MP, f/2.2, (wide) | 16 MP, f/2.0, (wide), 1/3.06" 1.0µm |
| Video | 1080p@30fps | 1080p@30fps |
| 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, OTG |
| 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 (under display, optical), accelerometer, gyro, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 15W wired | 18W wired, 70% in 67 min |
| Type | Li-Po 5000 mAh | 5000 mAh |
| Misc | ||
|---|---|---|
| Colors | Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White | Titanium Sapphire, Crystal Symphony |
| Models | SM-A315F, SM-A315F/DS, SM-A315G/DS, SM-A315G, SM-A315N | V2030 |
| Price | £ 139.00 / € 138.27 | About 210 EUR |
| SAR EU | 0.49 W/kg (head) 1.68 W/kg (body) | - |
| Tests | ||
|---|---|---|
| Battery life | Endurance rating 124h | - |
| Camera | Photo / Video | - |
| Display | Contrast ratio: Infinite (nominal) | - |
| Loudspeaker | -30.9 LUFS (Below average) | - |
| Performance | AnTuTu: 151815 (v8) GeekBench: 5096 (v4.4), 1216 (v5.1) GFXBench: 7fps (ES 3.1 onscreen) | - |
| OUR TESTS | ||
|---|---|---|
| Battery (old) | Endurance rating 124h | - |
| Camera | Photo / Video | - |
| Display | 635 nits max brightness (measured) | - |
| Loudspeaker | -30.9 LUFS (Below average) | - |
| Performance | AnTuTu: 151815 (v8) GeekBench: 5096 (v4.4), 1216 (v5.1) GFXBench: 7fps (ES 3.1 onscreen) | - |