| Product |
Xiaomi Redmi K40
|
Samsung Galaxy J7 Pro
|
| Battery |
| Charging |
33W wired, PD3.0, QC3, 100% in 52 min |
- |
| Music play |
- |
Up to 91 h |
| Talk time |
- |
Up to 24 h (3G) |
| Type |
Li-Po 4520 mAh |
Li-Ion 3600 mAh, non-removable |
| Body |
| Build |
- |
Glass front, aluminum back, aluminum frame |
| Dimensions |
163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) |
152.5 x 74.8 x 8 mm (6.00 x 2.94 x 0.31 in) |
| SIM |
Nano-SIM + Nano-SIM |
Nano-SIMNano-SIM + Nano-SIM |
| Weight |
196 g (6.91 oz) |
181 g (6.38 oz) |
| Comms |
| Bluetooth |
5.1, A2DP, LE |
4.1, A2DP, LE |
| Infrared port |
Yes |
- |
| NFC |
Yes |
Yes |
| Positioning |
GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC |
GPS, GLONASS, BDS |
| Radio |
No |
FM radio |
| USB |
USB Type-C 2.0, OTG |
microUSB 2.0, OTG |
| WLAN |
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Display |
| Protection |
Corning Gorilla Glass 5 |
- |
| Resolution |
1080 x 2400 pixels, 20:9 ratio (~395 ppi density) |
1080 x 1920 pixels, 16:9 ratio (~401 ppi density) |
| Size |
6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) |
5.5 inches, 83.4 cm2 (~73.1% screen-to-body ratio) |
| Type |
Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) |
Super AMOLED |
| Features |
| Sensors |
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass |
| |
- |
ANT+ |
| Launch |
| Announced |
2021, February 25 |
2017, June. Released 2017, July |
| Status |
Available. Released 2021, March 04 |
Discontinued |
| Main Camera |
| Features |
Color spectrum sensor, LED flash, HDR, panorama |
LED flash, panorama, HDR |
| Single |
- |
13 MP, f/1.7, 27mm (wide), AF |
| Triple |
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 119˚ (ultrawide)
5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm |
- |
| Video |
4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS |
1080p@30fps |
| Memory |
| Card slot |
No |
microSDXC (dedicated slot) |
| Internal |
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
16GB 3GB RAM, 32GB 3GB RAM, 64GB 3GB RAM |
| |
UFS 3.1 |
eMMC 5.1 |
| Misc |
| Colors |
Black, White, Aurora |
Black, Blue, Gold, Rose Gold |
| Models |
M2012K11AC |
SM-J730G, SM-J730GM |
| SAR |
- |
0.71 W/kg (head) |
| SAR EU |
- |
0.57 W/kg (head) 1.33 W/kg (body) |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G bands |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands |
1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42 |
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41, 66 |
| 5G bands |
1, 3, 28, 41, 77, 78 SA/NSA/Sub6 |
- |
| Speed |
HSPA, LTE, 5G |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
| Technology |
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
GSM / HSPA / LTE |
| |
CDMA2000 1x |
- |
| Our Tests |
| Audio quality |
- |
Noise -92.7dB / Crosstalk -92.4dB |
| Battery (old) |
- |
Endurance rating 107h |
| Camera |
- |
Photo / Video |
| Display |
- |
Contrast ratio: Infinite (nominal), 3.998 (sunlight) |
| Loudspeaker |
- |
Voice 68dB / Noise 69dB / Ring 82dB |
| Performance |
- |
GeekBench: 3768 (v4.4)
GFXBench: 1.9fps (ES 3.1 onscreen) |
| Platform |
| Chipset |
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) |
Exynos 7870 Octa (14 nm) |
| CPU |
Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) |
Octa-core 1.6 GHz Cortex-A53 |
| GPU |
Adreno 650 |
Mali-T830 MP1 |
| OS |
Android 11, MIUI 12 |
Android 7.0 (Nougat), upgradable to Android 9.0 (Pie), One UI |
| Selfie camera |
| Features |
HDR |
LED flash |
| Single |
20 MP, f/2.5, (wide), 1/3.4", 0.8µm |
13 MP, f/1.9, 28mm (wide), 1/3.1", 1.12µm |
| Video |
1080p@30fps, 720p@120fps |
1080p@30fps |
| Sound |
| 3.5mm jack |
No |
Yes |
| Loudspeaker |
Yes, with stereo speakers |
Yes |
| |
24-bit/192kHz Hi-Res audio |
- |
