| Product |
Xiaomi Redmi K40
|
Samsung Galaxy C7 (2017)
|
| Battery |
| Charging |
33W wired, PD3.0, QC3, 100% in 52 min |
- |
| Music play |
- |
Up to 78 h |
| Talk time |
- |
Up to 16 h (3G) |
| Type |
Li-Po 4520 mAh |
Li-Ion 3000 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) |
152.4 x 74.7 x 7.9 mm (6.00 x 2.94 x 0.31 in) |
| SIM |
Nano-SIM + Nano-SIM |
Nano-SIM + Nano-SIM |
| Weight |
196 g (6.91 oz) |
180 g (6.35 oz) |
| Comms |
| Bluetooth |
5.1, A2DP, LE |
4.2, A2DP, LE |
| Infrared port |
Yes |
- |
| NFC |
Yes |
No |
| Positioning |
GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC |
GPS, GLONASS |
| 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 (~73.3% 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 |
| Launch |
| Announced |
2021, February 25 |
2017, September. Released 2017, October |
| Status |
Available. Released 2021, March 04 |
Discontinued |
| Main Camera |
| Dual |
- |
13 MP, f/1.7, AF
5 MP, f/1.9, (depth) |
| Features |
Color spectrum sensor, LED flash, HDR, panorama |
LED flash, panorama, HDR |
| 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 (uses shared SIM slot) |
| Internal |
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
32GB 4GB RAM |
| |
UFS 3.1 |
- |
| Misc |
| Colors |
Black, White, Aurora |
Gold, Black, Pink |
| Models |
M2012K11AC |
SM-C710F, SM-C7100, SM-C7108 |
| SAR EU |
- |
0.98 W/kg (head) 1.47 W/kg (body) |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G bands |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands |
1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42 |
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 |
| 5G bands |
1, 3, 28, 41, 77, 78 SA/NSA/Sub6 |
- |
| Speed |
HSPA, LTE, 5G |
HSPA, LTE |
| Technology |
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
GSM / HSPA / LTE |
| |
CDMA2000 1x |
- |
| Platform |
| Chipset |
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) |
- |
| CPU |
Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) |
Octa-core (4x2.4 GHz & 4x1.7 GHz) |
| GPU |
Adreno 650 |
- |
| OS |
Android 11, MIUI 12 |
Android 7.1 (Nougat) |
| Selfie camera |
| Features |
HDR |
- |
| Single |
20 MP, f/2.5, (wide), 1/3.4", 0.8µm |
16 MP, f/1.9, 26mm (wide), 1/3.06", 1.0µm |
| Video |
1080p@30fps, 720p@120fps |
|
| Sound |
| 3.5mm jack |
No |
Yes |
| Loudspeaker |
Yes, with stereo speakers |
Yes |
| |
24-bit/192kHz Hi-Res audio |
- |
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