Xiaomi Redmi Note 8 vs Samsung Galaxy A51 5G UW
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| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi Note 8 | Samsung Galaxy A51 5G UW |
| 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 / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 20, 38, 40 | 2, 4, 5, 13, 66 |
| 5G bands | - | 260, 261 mmWave |
| Speed | HSPA 42.2/5.76 Mbps, LTE (4CA) Cat12 600/50 Mbps | HSPA, LTE, 5G |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE / 5G |
| Launch | ||
|---|---|---|
| Announced | 2019, August 29. Released 2019, October 16 | 2020, August 14 |
| Status | Discontinued | Available. Released 2020, August 14 |
| Body | ||
|---|---|---|
| Build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame | Glass front (Gorilla Glass 3), plastic back, aluminum frame |
| Dimensions | 158.3 x 75.3 x 8.4 mm (6.23 x 2.96 x 0.33 in) | 158.8 x 73.4 x 8.6 mm (6.25 x 2.89 x 0.34 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM (pre-installed) |
| Weight | 190 (6.70 oz) | 188.8 g (6.67 oz) |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 3 |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) |
| Size | 6.3 inches, 97.4 cm2 (~81.7% screen-to-body ratio) | 6.5 inches, 102.0 cm2 (~87.5% screen-to-body ratio) |
| Type | IPS LCD | Super AMOLED |
| Platform | ||
|---|---|---|
| CPU | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) | Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) |
| Chipset | Qualcomm SDM665 Snapdragon 665 (11 nm) | Qualcomm SM7250 Snapdragon 765G 5G (7 nm) |
| GPU | Adreno 610 | Adreno 620 |
| OS | Android 9.0 (Pie), upgradable to Android 11, MIUI 12.5 | Android 10, One UI 2 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (uses shared SIM slot) |
| Internal | 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | 128GB 6GB RAM |
| - | UFS 2.1 | |
| Main Camera | ||
|---|---|---|
| Features | LED flash, HDR, panorama | LED flash, panorama, HDR |
| Quad | 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro) Auxiliary lens | 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens |
| Single | - | 5 MP, AF |
| Video | 4K@30fps, 1080p@30/60/120fps; gyro-EIS | 4K@30fps, 1080p@30/120fps; gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | HDR, panorama | HDR |
| Single | 13 MP, f/2.0, (wide), 1/3.1", 1.12µm | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm |
| Video | 1080p@30fps | 4K@30fps, 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms | ||
|---|---|---|
| Bluetooth | 4.2, A2DP, LE | 5.0, A2DP, LE |
| Infrared port | Yes | - |
| NFC | No | Yes |
| Positioning | GPS, GLONASS, BDS | GPS, GLONASS, GALILEO, BDS |
| Radio | FM radio | FM radio, RDS, recording |
| 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 (rear-mounted), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| - | ANT+ | |
| Battery | ||
|---|---|---|
| Charging | 18W wired | 15W wired |
| Stand-by | - | Up to 672 h |
| Talk time | - | Up to 5 h |
| Type | Li-Po 4000 mAh, non-removable | Li-Po 4500 mAh |
| Misc | ||
|---|---|---|
| Colors | Neptune Blue, Moonlight White, Space Black, Nebula Purple, Cosmic Purple | Prism Bricks Blue |
| Models | M1908C3JH, M1908C3JG, M1908C3JI | SM-A516V |
| Price | About 220 EUR | About 470 EUR |
| SAR | 0.26 W/kg (head) 1.00 W/kg (body) | 0.70 W/kg (head) 1.25 W/kg (body) |
| SAR EU | 0.19 W/kg (head) 1.09 W/kg (body) | 0.59 W/kg (head) 1.32 W/kg (body) |
| Tests | ||
|---|---|---|
| Audio quality | Noise -94.0dB / Crosstalk -93.3dB | - |
| Battery life | Endurance rating 108h | - |
| Camera | Photo / Video | - |
| Display | Contrast ratio: 1521:1 (nominal) | - |
| Loudspeaker | Voice 78dB / Noise 72dB / Ring 81dB | - |
| Performance | AnTuTu: 141915 (v7), 161572 (v8) GeekBench: 5590 (v4.4), 1339 (v5.1) GFXBench: 5.9fps (ES 3.1 onscreen) | - |
| OUR TESTS | ||
|---|---|---|
| Audio quality | Noise -94.0dB / Crosstalk -93.3dB | - |
| Battery (old) | Endurance rating 108h | - |
| Camera | Photo / Video | - |
| Display | Contrast ratio: 1521:1 (nominal) | - |
| Loudspeaker | Voice 78dB / Noise 72dB / Ring 81dB | - |
| Performance | AnTuTu: 141915 (v7), 161572 (v8) GeekBench: 5590 (v4.4), 1339 (v5.1) GFXBench: 5.9fps (ES 3.1 onscreen) | - |