| Product |
Xiaomi Mi 4i
|
Infinix Note 50x
|
| Battery |
| Charging |
10W wired, QC1 |
45W wired
10W reverse wired
Bypass Charging |
| Talk time |
Up to 35 h (3G) |
- |
| Type |
Li-Ion 3120 mAh, non-removable |
5500 mAh |
| Body |
| Build |
Glass front (Gorilla Glass), plastic back, plastic frame |
- |
| Dimensions |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
165.4 x 76.4 x 8.0 mm or 8.2 mm |
| SIM |
Dual SIM (Micro-SIM, dual stand-by) |
Nano-SIM + Nano-SIM |
| Weight |
130 g (4.59 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 |
4.1, A2DP |
5.4, A2DP, LE |
| Infrared port |
- |
Yes |
| NFC |
No |
No |
| Positioning |
GPS, GLONASS, BDS |
GPS |
| Radio |
Stereo 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, hotspot |
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band |
| Display |
| Protection |
Corning scratch-resistant glass |
- |
| 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 (~71.7% 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 |
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Launch |
| Announced |
2015, April. Released 2015, April |
2025, March 27 |
| Status |
Discontinued |
Available. Released 2025, April |
| Main Camera |
| Features |
Dual-LED dual-tone flash, panorama, HDR |
Dual-LED flash, HDR, panorama |
| Single |
13 MP, f/2.0, AF |
50 MP, f/1.6, (wide), PDAF |
| Video |
1080p@30fps, 480p@120fps |
4K@30fps, 1080p@30/120/240fps |
| Memory |
| Card slot |
No |
microSDXC (uses shared SIM slot) |
| Internal |
16GB 2GB RAM, 32GB 2GB RAM |
128GB 6GB RAM, 128GB 8GB RAM |
| |
eMMC 4.5 |
UFS 2.2 |
| Misc |
| Colors |
Dark Gray, Black, White, Yellow, Blue, Pink |
Titanium Gray, Enchanted Purple, Sea Breeze Green, Sunset Spice Pink |
| Models |
2015015 |
X6857B |
| SAR |
0.51 W/kg (head) 0.60 W/kg (body) |
- |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 1900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands |
3, 7, 38, 39, 40, 41 |
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 |
| Speed |
HSPA, LTE Cat4 150/50 Mbps |
HSPA, LTE, 5G |
| Technology |
GSM / HSPA / LTE |
GSM / HSPA / LTE / 5G |
| |
TD-SCDMA |
- |
| Our Tests |
| Battery (old) |
Endurance rating 67h |
- |
| Camera |
Photo / Video |
- |
| Display |
Contrast ratio: 1055:1 (nominal), 2.641 (sunlight) |
- |
| Loudspeaker |
Voice 63dB / Noise 65dB / Ring 68dB |
- |
| Performance |
Basemark X: 4875 |
- |
| Platform |
| Chipset |
Qualcomm MSM8939 Snapdragon 615 (28 nm) |
Mediatek Dimensity 7300 Ultimate (4 nm) |
| CPU |
Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) |
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) |
| GPU |
Adreno 405 |
Mali-G615 MC2 |
| OS |
Android 5.0.2 (Lollipop), MIUI 8.2 |
Android 15, up to 2 major Android upgrades, XOS 15 |
| Selfie camera |
| Single |
5 MP, f/1.8 |
8 MP, f/2.0, (wide) |
| Video |
|
1440p@30fps, 1080p@30fps |
| Sound |
| 3.5mm jack |
Yes |
No |
| Loudspeaker |
Yes |
Yes, with stereo speakers |
| |
- |
24-bit/192kHz Hi-Res audio |
