DailyTechPricesDevice Comparison
| Galaxy M51 | Redmi A7 | |
|---|---|---|
| LAUNCH DATE | ||
| Announced | August 31, 2020 | 2026, April 21 |
| Released | 2020-09-11 | 2026, April 24 |
| Status | September 11, 2020 | Available |
| NETWORK | ||
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 2/3/5/8 |
| 3G Bands | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G LTE | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66 | 1, 3, 5, 8, 28, 40, 41 |
| 5G | No | No |
| Speed | LTE | HSPA, LTE |
| Technology | 4G/LTE/2G | GSM / HSPA / LTE |
| BODY | ||
| Build | Glass front (Gorilla Glass 3+), plastic back, plastic frame | Glass front, plastic back, plastic frame |
| Dimensions | 163.9 x 76.3 x 9.5 mm (6.45 x 3.00 x 0.37 in) | 171.8 x 79.8 x 8.3 mm (6.76 x 3.14 x 0.33 in) |
| IP Rating | No IP rating | Dust and Splash Resistant |
| SIM | Nano-SIM + Nano-SIM | Dual SIM + microSD |
| Weight | 213 g (7.51 oz) | 193g |
| DISPLAY | ||
| Brightness | 650 nits (rated), 674 nits (measured) | 450 nits (typ) |
| Color | — | Color gamut: 70% NTSC |
| Protection | Corning Gorilla Glass 3+ | — |
| Refresh Rate | 60Hz | Up to 120Hz |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~393 ppi density) | 720 x 1640 pixels (~260 ppi density) |
| Screen-to-body | ~86.7% | ~82.0% |
| Size | 6.7 inches, 108.4 cm2 (~86.7% screen-to-body ratio) | 6.88" |
| Type | Super AMOLED Plus | LCD |
| PLATFORM | ||
| CPU | Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver) | Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55) |
| Chipset | Qualcomm SDM730 Snapdragon 730G (8 nm) | UNISOC T7250 |
| GPU | Adreno 618 | Mali-G57 |
| OS | Android 10, upgradable to Android 12, One UI 4.1 | Android 15 (Go Edition) |
| MEMORY | ||
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 128GB | 64GB |
| RAM | 6GB RAM, 8GB RAM | 3 GB |
| Storage Type | — | LPDDR4X + eMMC 5.1 |
| Storage/RAM variants | 128GB; 6GB RAM, 8GB RAM | 64GB; 3 GB RAM |
| MAIN CAMERA | ||
| Features | LED flash, panorama, HDR | LED Flash, HDR |
| MAIN CAMERA | 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.4, (depth | 13MP main camera, f/2.2 |
| Video | 4K@30fps, 1080p@30fps | 1080p at 30fps; 720p at 30fps |
| SELFIE CAMERA | ||
| Features | HDR | HDR |
| Selfie camera | 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm | 8MP front camera, f/2.0 |
| Video | 4K@30fps, 1080p@30fps | 1080p at 30fps; 720p at 30fps |
| SOUND | ||
| 3.5mm jack | Yes | 3.5 mm headphone jack |
| Loudspeaker | Yes | Yes |
| COMMUNICATION | ||
| Bluetooth | 5.0, A2DP, LE | 5.2 |
| NFC | Yes | No |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS, GLONASS, Galileo, Beidou |
| Radio | FM radio, RDS | Yes |
| 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 Protocol: 802.11a/b/g/n/ac |
| FEATURES | ||
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Virtual Proximity sensor; Virtual Ambient light sensor; Accelerometer; Electronic compass |
| BATTERY | ||
| Capacity | 7000 mAh | 5200mAh (typ) |
| Charging Type | 25W wired, 100% in 115 min | 15W fast charging |
| Type | Li-Po 7000 mAh | Non-removable Li-Po Battery |
| ADDITIONAL INFORMATION | ||
| Colors | Celestial Black, Electric Blue, White | Black, Sky Blue |
| Compatibility | — | Cambodia specification set |
| Launch Price (USD) | $80.00 (reference only — see Price in Nigeria above for the actual retail price) | — |
| Models | SM-M515F, SM-M515F/DSN | Redmi A7 |
| Price in Nigeria | ₦119,568 | ₦120,000 |
| SECURITY | ||
| Security | Biometric security: Fingerprint (side-mounted). | Side fingerprint sensor; AI Face Unlock |