| Product |
Xiaomi Mi 4
|
Infinix Note 50x
|
| Battery |
| Charging |
18W wired, QC2 |
45W wired
10W reverse wired
Bypass Charging |
| Stand-by |
Up to 280 h (3G) |
- |
| Type |
Li-Ion 3080 mAh, non-removable |
5500 mAh |
| Body |
| Build |
Glass front, plastic back, aluminum frame |
- |
| Dimensions |
139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in) |
165.4 x 76.4 x 8.0 mm or 8.2 mm |
| SIM |
Micro-SIM |
Nano-SIM + Nano-SIM |
| Weight |
149 g (5.26 oz) |
195.4 g or 198.9 g (6.88 oz) |
|
- |
IP64 dust tight and water resistant (water splashes)
RGB notification light (on the back)
MIL-STD-810H compliant*
* does not guarantee ruggedness or use in extreme conditions |
| Comms |
| Bluetooth |
4.0, A2DP |
5.4, A2DP, LE |
| Infrared port |
Yes |
Yes |
| NFC |
No |
No |
| Positioning |
GPS, GLONASS, BDS |
GPS |
| Radio |
FM radio |
FM radio |
| USB |
microUSB 2.0, OTG |
USB Type-C 2.0, OTG |
| WLAN |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot |
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band |
| Display |
| Resolution |
1080 x 1920 pixels, 16:9 ratio (~441 ppi density) |
720 x 1600 pixels, 20:9 ratio (~263 ppi density) |
| Size |
5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio) |
6.67 inches, 107.4 cm2 (~85.0% screen-to-body ratio) |
| Type |
IPS LCD |
IPS LCD, 120Hz, 560 nits (typ) |
| Features |
| Sensors |
Accelerometer, gyro, proximity, compass, barometer |
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Launch |
| Announced |
2014, July. Released 2014, August |
2025, March 27 |
| Status |
Discontinued |
Available. Released 2025, April |
| Main Camera |
| Features |
LED flash, panorama, HDR |
Dual-LED flash, HDR, panorama |
| Single |
|
50 MP, f/1.6, (wide), PDAF |
| Video |
4K@30fps, 1080p@30fps, 720p@120fps, HDR |
4K@30fps, 1080p@30/120/240fps |
| Memory |
| Card slot |
No |
microSDXC (uses shared SIM slot) |
| Internal |
16GB 2GB RAM, 64GB 3GB RAM |
128GB 6GB RAM, 128GB 8GB RAM |
|
eMMC 5.0 |
UFS 2.2 |
| Misc |
| Colors |
Black, White |
Titanium Gray, Enchanted Purple, Sea Breeze Green, Sunset Spice Pink |
| Models |
2014215 |
X6857B |
| SAR |
|
- |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 - all versions |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
TD-SCDMA - 4G model |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands |
38, 39, 40 - 4G model |
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41, 42, 66 |
| 5G bands |
- |
1, 3, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66, 71, 77, 78 SA/NSA |
| EDGE |
Yes |
- |
| GPRS |
Yes |
- |
| Speed |
HSPA, LTE, EV-DO Rev.A 3.1 Mbps |
HSPA, LTE, 5G |
| Technology |
GSM / CDMA / HSPA / EVDO / LTE |
GSM / HSPA / LTE / 5G |
|
CDMA2000 1xEV-DO - Telecom 3G model |
- |
| Our Tests |
| Audio quality |
Noise -91.6dB / Crosstalk -49.7dB |
- |
| Battery (old) |
Endurance rating 68h |
- |
| Camera |
Photo / Video |
- |
| Display |
Contrast ratio: 929 (nominal), 2.424 (sunlight) |
- |
| Loudspeaker |
Voice 62dB / Noise 62dB / Ring 66dB |
- |
| Platform |
| Chipset |
Qualcomm MSM8974AC Snapdragon 801 (28 nm) |
Mediatek Dimensity 7300 Ultimate (4 nm) |
| CPU |
Quad-core 2.5 GHz Krait 400 |
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) |
| GPU |
Adreno 330 |
Mali-G615 MC2 |
| OS |
Android 4.4.3 (KitKat), upgradable to 6.0.1 (Marshmallow), MIUI 10 |
Android 15, up to 2 major Android upgrades, XOS 15 |
| Selfie camera |
| Single |
8 MP, f/1.8 |
8 MP, f/2.0, (wide) |
| Video |
1080p@30fps |
1440p@30fps, 1080p@30fps |
| Sound |
| 3.5mm jack |
Yes |
No |
| Loudspeaker |
Yes |
Yes, with stereo speakers |
|
- |
24-bit/192kHz Hi-Res audio |
