Compare
Specifications
Samsung Galaxy J7 |
Samsung Galaxy A51 |
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Full
Differences
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Samsung Galaxy J7 |
Samsung Galaxy A51 |
| Network | ||
|---|---|---|
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| 2G bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | ||
| 4G Network | 1, 3, 5, 7, 8, 20, 40 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 |
| 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 - SM-A515U | ||
| Speed | HSPA 21.1/5.76 Mbps HSPA, LTE Cat4 150/50 Mbps |
HSPA, LTE |
| Launch | ||
|---|---|---|
| Announced | 2015, June 19. Released 2015, July 16 | 2019, December 12 |
| Status | Discontinued | Available. Released 2019, December 16 |
| Body | ||
|---|---|---|
| Dimensions | 152.2 x 78.7 x 7.5 mm (5.99 x 3.10 x 0.30 in) | 158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in) |
| 3D size compare | ||
| Weight | 171 g (6.03 oz) | 172 g (6.07 oz) |
| Build | Glass front, plastic back, plastic frame | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| SIM | Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by) | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
| Display | ||
|---|---|---|
| Type | Super AMOLED | Super AMOLED |
| Size | 5.5 inches, 83.4 cm2 (~69.6% screen-to-body ratio) | 6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio) |
| Resolution | 720 x 1280 pixels, 16:9 ratio (~267 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) |
| Protection | Corning Gorilla Glass 3 | |
| Platform | ||
|---|---|---|
| OS | Android 5.1 (Lollipop), upgradable to 7.1.1 (Nougat) | Android 10, upgradable to Android 13, One UI 5 |
| Chipset | Qualcomm MSM8939 Snapdragon 615 (28 nm) Exynos 7580 Octa (28 nm) |
Exynos 9611 (10nm) |
| CPU | Octa-core (4x1.4 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) Octa-core 1.5 GHz Cortex-A53 |
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| GPU | Adreno 405 Mali-T720MP2 |
Mali-G72 MP3 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 16GB 1.5GB RAM | 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM |
| eMMC 5.0 or eMMC 4.5 | UFS 2.0 | |
| Main Camera | ||
|---|---|---|
| Modules | 13 MP, f/1.9, 28mm (wide), AF | 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.2, (depth) |
| Features | LED flash, panorama | LED flash, panorama, HDR |
| Video | 1080p@30fps | 4K@30fps, 1080p@30/120fps; gyro-EIS |
| Selfie Camera | ||
|---|---|---|
| Modules | 5 MP, f/2.2, 23mm (wide) | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm |
| Features | LED flash | HDR |
| Video | 4K@30fps, 1080p@30fps | |
ADVERTISEMENT
| Sound | ||
|---|---|---|
| Loudspeaker | Yes | Yes |
| 3.5mm jack | Yes | Yes |
| Comms | ||
|---|---|---|
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Bluetooth | 4.1, A2DP | 5.0, A2DP, LE |
| Positioning | GPS, GLONASS | GPS, GLONASS, GALILEO, BDS |
| NFC | Yes (Snapdragon model only) | Yes |
| Infrared port | No | No |
| Radio | FM radio, RDS, recording | FM radio |
| USB | microUSB 2.0 | USB Type-C 2.0, OTG |
| Features | ||
|---|---|---|
| Sensors | Accelerometer, proximity | Fingerprint (under display, optical), accelerometer, gyro, compass |
| ANT+ | Virtual proximity sensing ANT+ |
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| Battery | ||
|---|---|---|
| Type | Li-Ion 3000 mAh, removable | Li-Po 4000 mAh, non-removable |
| Charging | 15W wired | |
| Talk time | Up to 18 h (3G) | |
| Music play | Up to 76 h | |
| Misc | ||
|---|---|---|
| Colors | White, Black, Gold | Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink | SAR | 1.25 W/kg (head) 1.36 W/kg (body) | 0.80 W/kg (head) 0.67 W/kg (body) |
| SAR EU | 0.50 W/kg (head) 0.37 W/kg (body) | 0.37 W/kg (head) 1.59 W/kg (body) |
| Models | SM-J700F, SM-J700H, SM-J700M, SM-J700T, J7, SM-J700T1, SM-J700K, SM-J700P, SM-j7008 | SM-A515F, SM-A515F/DSN, SM-A515F/DS, SM-A515F/DST, SM-A515F/DSM, SM-A515F/N, SM-A515U, SM-A515U1, SM-A515W, SM-A515X, SM-S515DL |
| Price | About 200 EUR | $ 139.00 / C$ 189.00 / £ 109.00 / € 126.00 |
| Tests | ||
|---|---|---|
| Performance | Basemark OS II 2.0: 709Basemark X: 3922 | AnTuTu: 113051 (v7), 175363 (v8) GeekBench: 5401 (v4.4), 1294 (v5.1) GFXBench: 5.6fps (ES 3.1 onscreen) |
| Display | Contrast ratio: Infinite (nominal), 3.879 (sunlight) | Contrast ratio: Infinite (nominal) |
| Camera | Compare PHOTO / Compare VIDEO | |
| Loudspeaker | Voice 63dB / Noise 62dB / Ring 66dB | -28.6 LUFS (Average) |
| Audio quality | Noise -96.1dB / Crosstalk -73.2dB | Noise -93.1dB / Crosstalk -87.3dB |
| Battery (old) | Endurance rating 91h | Endurance rating 86h |