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Battery
Charging 10W wired 45W wired 10W reverse wired Bypass Charging
Music play Up to 60 h -
Stand-by Up to 264 h (3G) -
Type Li-Po 4000 mAh, non-removable 5500 mAh
Body
Dimensions 150 x 76 x 8.7 mm (5.91 x 2.99 x 0.34 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 164 g (5.78 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, LE 5.4, A2DP, LE
Infrared port Yes Yes
NFC No No
Positioning GPS, GLONASS, BDS GPS
Radio Stereo FM radio, recording 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
Resolution 1080 x 1920 pixels, 16:9 ratio (~403 ppi density) 720 x 1600 pixels, 20:9 ratio (~263 ppi density)
Size 5.5 inches, 82.6 cm2 (~72.4% 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 Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2015, November. Released 2015, November 2025, March 27
Status Discontinued Available. Released 2025, April
Main Camera
Features Dual-LED dual-tone flash, HDR, panorama Dual-LED flash, HDR, panorama
Single 13 MP, f/2.2, PDAF 50 MP, f/1.6, (wide), PDAF
Video 1080p@30fps 4K@30fps, 1080p@30/120/240fps
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 16GB 2GB RAM, 32GB 3GB RAM 128GB 6GB RAM, 128GB 8GB RAM
  eMMC 5.0 UFS 2.2
Misc
Colors Silver, Gray, Gold Titanium Gray, Enchanted Purple, Sea Breeze Green, Sunset Spice Pink
Models - X6857B
SAR EU 0.33 W/kg (head)     -
Network
2G bands GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 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 HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
  TD-SCDMA -
Our Tests
Audio quality Noise -94.2dB / Crosstalk -93.7dB -
Battery (old) Endurance rating 72h -
Camera Photo / Video -
Display Contrast ratio: 953 (nominal), 2.249 (sunlight) -
Loudspeaker Voice 66dB / Noise 66dB / Ring 75dB -
Performance Basemark OS II 2.0: 1018Basemark X: 8540 -
Platform
Chipset Mediatek MT6795 Helio X10 (28 nm) Mediatek Dimensity 7300 Ultimate (4 nm)
CPU Octa-core 2.0 GHz Cortex-A53 Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU PowerVR G6200 Mali-G615 MC2
OS Android 5.0.2 (Lollipop), MIUI 7 Android 15, up to 2 major Android upgrades, XOS 15
Selfie camera
Single 5 MP, f/2.0 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 audio 24-bit/192kHz Hi-Res audio
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