Product
Xiaomi Mi A2 (Mi 6X)
Xiaomi Mi A2 (Mi 6X)
Apple iPhone 6s
Apple iPhone 6s
Battery
Charging 18W wired, QC3 (Global) 18W wired, QC4 (India) -
Stand-by - Up to 240 h (3G)
Talk time - Up to 14 h (3G)
Type Li-Po 3000 mAh, non-removable Li-Ion 1715 mAh, non-removable (6.91 Wh)
Body
Build Glass front, aluminum back, aluminum frame Glass front (Corning-made glass), aluminum back, aluminum frame
Dimensions 158.7 x 75.4 x 7.3 mm (6.25 x 2.97 x 0.29 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 166 g (5.86 oz) 143 g (5.04 oz)
  - Apple Pay (Visa, MasterCard, AMEX certified)
Comms
Bluetooth 5.0, A2DP, LE 4.2, A2DP, LE
Infrared port Yes -
NFC No Yes (Apple Pay only)
Positioning GPS, GLONASS, BDS GPS, GLONASS, GALILEO, QZSS
Radio No No
USB USB Type-C 2.0 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 - Ion-strengthened glass, oleophobic coating
Resolution 1080 x 2160 pixels, 18:9 ratio (~403 ppi density) 750 x 1334 pixels, 16:9 ratio (~326 ppi density)
Size 5.99 inches, 92.6 cm2 (~77.4% screen-to-body ratio) 4.7 inches, 60.9 cm2 (~65.6% screen-to-body ratio)
Type IPS LCD IPS LCD, 500 nits
  - 3D Touch
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2018, July 24. Released 2018, July 2015, September 09. Released 2015, September 25
Status Discontinued Discontinued
Main Camera
Dual 12 MP, f/1.8, 1/2.9", 1.25µm 20 MP, f/1.8, 1/2.8", 1.0µm, PDAF -
Features Dual-LED flash, HDR, panorama Dual-LED dual-tone flash, HDR
Single - 12 MP, f/2.2, 29mm (standard), 1/3.0", 1.22µm, PDAF
Video 4K@30fps, 1080p@30fps (gyro-EIS), 720p@120fps 4K@30fps, 1080p@60fps,1080p@120fps, 720p@240fps
Memory
Card slot No No
Internal 32GB 4GB RAM, 64GB 4GB RAM, 128GB 6GB RAM 16GB 2GB RAM, 32GB 2GB RAM, 64GB 2GB RAM, 128GB 2GB RAM
  eMMC 5.1 -
Misc
Colors Black, Gold, Blue, Red, Rose Gold Space Gray, Silver, Gold, Rose Gold
Models M1804D2SG, M1804D2SI, Mi A2, Mi 6X A1633, A1688, A1691, A1700, iPhone8,1
SAR 0.96 W/kg (head)     0.64 W/kg (body)     1.14 W/kg (head)     1.14 W/kg (body)    
SAR EU 1.16 W/kg (head)     0.66 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 - Global HSDPA 850 / 900 / 1700 / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 20, 38, 40 - Global 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29 - A1688
Speed HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps
Technology GSM / CDMA / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
  1, 3, 5, 7, 8, 34, 38, 39, 40, 41 - China 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 73h -
Camera Photo / Video -
Loudspeaker Voice 89dB / Noise 72dB / Ring 89dB -
Performance AnTuTu: 130927 (v7), 172886 (v8) GeekBench: 4625 (v4.4), 1157 (v5.1) GFXBench: 8.6fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm SDM660 Snapdragon 660 (14 nm) Apple A9 (14/16 nm - maker dependant)
CPU Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Dual-core 1.84 GHz Twister
GPU Adreno 512 PowerVR GT7600 (six-core graphics)
OS Android 8.1 (Oreo), upgradable to Android 9.0 (Pie), Android One iOS 9, upgradable to iOS 15.8.4
Selfie camera
Features LED flash, HDR Face detection, HDR, panorama
Single 20 MP, f/2.2, (wide), 1/3", 0.9µm 5 MP, f/2.2, 31mm (standard)
Video 1080p@30fps 720p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes Yes
  - 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