Product
Xiaomi Poco X3 Pro
Xiaomi Poco X3 Pro
Apple iPhone 6s
Apple iPhone 6s
Battery
Charging 33W wired, 59% in 30 min, 100% in 59 min -
Stand-by - Up to 240 h (3G)
Talk time - Up to 14 h (3G)
Type Li-Po 5160 mAh Li-Ion 1715 mAh, non-removable (6.91 Wh)
Body
Build Glass front (Gorilla Glass 6), plastic back Glass front (Corning-made glass), aluminum back, aluminum frame
Dimensions 165.3 x 76.8 x 9.4 mm (6.51 x 3.02 x 0.37 in) 138.3 x 67.1 x 7.1 mm (5.44 x 2.64 x 0.28 in)
SIM Nano-SIM + Nano-SIM Nano-SIM
Weight 215 g (7.58 oz) 143 g (5.04 oz)
  IP53 dust protected and water resistant (vertical water sprays) Apple Pay (Visa, MasterCard, AMEX certified)
Comms
Bluetooth 5.0, A2DP, LE 4.2, A2DP, LE
Infrared port Yes -
NFC Yes (market/region dependent) Yes (Apple Pay only)
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, GALILEO, QZSS
Radio FM radio, recording No
USB USB Type-C 2.0, OTG Lightning, USB 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot
Display
Protection Corning Gorilla Glass 6 Ion-strengthened glass, oleophobic coating
Resolution 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) 750 x 1334 pixels, 16:9 ratio (~326 ppi density)
Size 6.67 inches, 107.4 cm2 (~84.6% screen-to-body ratio) 4.7 inches, 60.9 cm2 (~65.6% screen-to-body ratio)
Type IPS LCD, 120Hz, 2404Hz PWM, HDR10, 450 nits (typ) IPS LCD, 500 nits
  - 3D Touch
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2021, March 22 2015, September 09. Released 2015, September 25
Status Available. Released 2021, March 24 Discontinued
Main Camera
Features Dual-LED flash, HDR, panorama Dual-LED dual-tone flash, HDR
Quad 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide), 1.0µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Single - 12 MP, f/2.2, 29mm (standard), 1/3.0", 1.22µm, PDAF
Video 4K@30fps, 1080p@30/60/120/240fps, 1080p@960fps, gyro-EIS 4K@30fps, 1080p@60fps,1080p@120fps, 720p@240fps
Memory
Card slot microSDXC (uses shared SIM slot) No
Internal 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM 16GB 2GB RAM, 32GB 2GB RAM, 64GB 2GB RAM, 128GB 2GB RAM
  UFS 3.1 -
Misc
Colors Phantom Black, Frost Blue, Metal Bronze Space Gray, Silver, Gold, Rose Gold
Models M2102J20SG, M2102J20SI A1633, A1688, A1691, A1700, iPhone8,1
SAR 0.99 W/kg (head)     0.67 W/kg (body)     1.14 W/kg (head)     1.14 W/kg (body)    
SAR EU 0.57 W/kg (head)     0.90 W/kg (body)     0.87 W/kg (head)     0.98 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 - International 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29 - A1688
Speed HSPA, LTE (CA) HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
  1, 2, 3, 5, 8, 38, 40, 41 - India 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41 - A1687
Our Tests
Battery (old) Endurance rating 112h -
Camera Photo / Video -
Display Contrast ratio: 1401:1 (nominal) -
Loudspeaker -26.1 LUFS (Good) -
Performance AnTuTu: 453223 (v8) GeekBench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm Snapdragon 860 (7 nm) Apple A9 (14/16 nm - maker dependant)
CPU Octa-core (1x2.96 GHz Kryo 485 Gold & 3x2.42 GHz Kryo 485 Gold & 4x1.78 GHz Kryo 485 Silver) Dual-core 1.84 GHz Twister
GPU Adreno 640 PowerVR GT7600 (six-core graphics)
OS Android 11, upgradable to Android 12, MIUI 13 for POCO iOS 9, upgradable to iOS 15.8.4
Selfie camera
Features HDR, panorama Face detection, HDR, panorama
Single 20 MP, f/2.2, (wide), 1/3.4", 0.8µm 5 MP, f/2.2, 31mm (standard)
Video 1080p@30fps 720p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes, with stereo speakers Yes
  24-bit/192kHz Hi-Res audio 16-bit/44.1kHz audio
Tests
Audio quality - Noise -93.8dB / Crosstalk -73.2dB
Battery (old) - Endurance rating 62h
Camera - Photo / Video
Display - Contrast ratio: 1481 (nominal), 3.783 (sunlight)
Loudspeaker - Voice 66dB / Noise 64dB / Ring 65dB
Performance - Basemark OS II 2.0: 2195