| Product |
Samsung Galaxy A51
|
Apple iPhone 4s
|
| Battery |
| Charging |
15W wired |
- |
| Stand-by |
- |
Up to 200 h (3G) |
| Talk time |
- |
Up to 8 h (3G) |
| Type |
Li-Po 4000 mAh, non-removable |
Li-Po 1432 mAh, non-removable (5.3 Wh) |
| Body |
| Build |
Glass front (Gorilla Glass 3), plastic back, plastic frame |
Glass front (Corning-made glass), glass back, stainless steel frame |
| Dimensions |
158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in) |
115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in) |
| SIM |
Nano-SIMNano-SIM + Nano-SIM |
Micro-SIM |
| Weight |
172 g (6.07 oz) |
140 g (4.94 oz) |
| |
- |
Scratch-resistant glass back panel |
| Comms |
| Bluetooth |
5.0, A2DP, LE |
4.0, A2DP, LE |
| NFC |
Yes |
- |
| Positioning |
GPS, GLONASS, GALILEO, BDS |
GPS, A-GPS, GLONASS |
| Radio |
FM radio |
No |
| USB |
USB Type-C 2.0, OTG |
2.0 |
| WLAN |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
Wi-Fi 802.11 b/g/n, hotspot |
| Display |
| Protection |
Corning Gorilla Glass 3 |
Corning Gorilla Glass, oleophobic coating |
| Resolution |
1080 x 2400 pixels, 20:9 ratio (~405 ppi density) |
640 x 960 pixels, 3:2 ratio (~330 ppi density) |
| Size |
6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio) |
3.5 inches, 36.5 cm2 (~54.0% screen-to-body ratio) |
| Type |
Super AMOLED |
IPS LCD |
| Features |
| Sensors |
Fingerprint (under display, optical), accelerometer, gyro, compass |
Accelerometer, gyro, proximity, compass |
| |
Virtual proximity sensing
ANT+ |
- |
| Launch |
| Announced |
2019, December 12 |
2011, October 04. Released 2011, October 14 |
| Status |
Available. Released 2019, December 16 |
Discontinued |
| Main Camera |
| Features |
LED flash, panorama, HDR |
LED flash, panorama, HDR |
| Quad |
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) |
- |
| Single |
- |
8 MP, f/2.4, 35mm (standard), 1/3.2", 1.4µm, AF |
| Video |
4K@30fps, 1080p@30/120fps; gyro-EIS |
1080p@30fps |
| Memory |
| Card slot |
microSDXC (dedicated slot) |
No |
| Internal |
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM |
8GB 512MB RAM, 16GB 512MB RAM, 32GB 512MB RAM, 64GB 512MB RAM |
| |
UFS 2.0 |
- |
| Misc |
| Colors |
Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink |
Black, White |
| Models |
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 |
A1431, A1387, iPhone4,1 |
| SAR |
0.80 W/kg (head) 0.67 W/kg (body) |
1.18 W/kg (head) 0.98 W/kg (body) |
| SAR EU |
0.37 W/kg (head) 1.59 W/kg (body) |
0.99 W/kg (head) 0.99 W/kg (body) |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands |
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 |
- |
| Speed |
HSPA, LTE |
HSPA 14.4/5.76 Mbps |
| Technology |
GSM / HSPA / LTE |
GSM / CDMA / HSPA / EVDO |
| |
2, 4, 5, 12, 13, 25, 26, 41, 66, 71 - SM-A515U |
CDMA2000 1xEV-DO |
| Our Tests |
| Audio quality |
Noise -93.1dB / Crosstalk -87.3dB |
- |
| Battery (old) |
Endurance rating 86h |
- |
| Camera |
Photo / Video |
- |
| Display |
636 nits max brightness (measured) |
- |
| Loudspeaker |
-28.6 LUFS (Average) |
- |
| Performance |
AnTuTu: 113051 (v7), 175363 (v8)
GeekBench: 5401 (v4.4), 1294 (v5.1)
GFXBench: 5.6fps (ES 3.1 onscreen) |
- |
| Platform |
| Chipset |
Exynos 9611 (10 nm) |
Apple A5 (45 nm) |
| CPU |
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
Dual-core 1.0 GHz Cortex-A9 |
| GPU |
Mali-G72 MP3 |
PowerVR SGX543MP2 |
| OS |
Android 10, upgradable to Android 13, One UI 5 |
iOS 5, upgradable to iOS 9.3.6 |
| Selfie camera |
| Features |
HDR |
- |
| Single |
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm |
VGA, videocalling over Wi-Fi and 3G |
| Video |
4K@30fps, 1080p@30fps |
480p@30fps |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
| Tests |
| Audio quality |
- |
Noise -91.2dB / Crosstalk -93.0dB |
| Battery (old) |
- |
Endurance rating 45h |
| Camera |
- |
Photo / Video |
| Display |
- |
Contrast ratio: 1261:1 (nominal) / 2.269:1 (sunlight) |
| Loudspeaker |
- |
Voice 65dB / Noise 64dB / Ring 74dB |
