Product
Xiaomi Mi 8
Xiaomi Mi 8
Apple iPhone 6s Plus
Apple iPhone 6s Plus
Battery
Charging 18W wired, QC4 -
Stand-by - Up to 384 h (3G)
Talk time - Up to 24 h (3G)
Type Li-Po 3400 mAh, non-removable Li-Ion 2750 mAh, non-removable (10.45 Wh)
Body
Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame (7000 series) Glass front (Corning-made glass), aluminum back, aluminum frame
Dimensions 154.9 x 74.8 x 7.6 mm (6.10 x 2.94 x 0.30 in) 158.2 x 77.9 x 7.3 mm (6.23 x 3.07 x 0.29 in)
SIM Nano-SIM + Nano-SIM Nano-SIM
Weight 175 g (6.17 oz) 192 g (6.77 oz)
  - Apple Pay (Visa, MasterCard, AMEX certified)
Comms
Bluetooth 5.0, A2DP, LE, aptX HD 4.2, A2DP, LE
NFC Yes Yes (Apple Pay only)
Positioning GPS (L1+L5), GLONASS (L1), BDS (B1), GALILEO (E1+E5a), QZSS (L1+L5) GPS, GLONASS, GALILEO, QZSS
Radio No No
USB USB Type-C Lightning, USB 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot
Display
Protection Corning Gorilla Glass 5 Ion-strengthened glass, oleophobic coating
Resolution 1080 x 2248 pixels (~402 ppi density) 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Size 6.21 inches, 97.1 cm2 (~83.8% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~67.7% screen-to-body ratio)
Type Super AMOLED, HDR10 IPS LCD
  - 3D Touch display
Features
Sensors Infrared Face ID, fingerprint (rear-mounted), accelerometer, gyro, proximity, barometer, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2018, May. Released 2018, June 2015, September 09. Released 2015, September 25
Status Discontinued Discontinued
Main Camera
Dual 12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF, 4-axis OIS 12 MP, f/2.4, 56mm (telephoto), 1/3.4", 1.0µm, AF, 2x optical zoom -
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, OIS
Video 4K@30/60fps, 1080p@30/120/240fps, 720p@960fps 4K@30fps, 1080p@60fps, 1080p@120fps, 720p@240fps
Memory
Card slot No No
Internal 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM 16GB 2GB RAM, 32GB 2GB RAM, 64GB 2GB RAM, 128GB 2GB RAM
  UFS 2.1 NVMe
Misc
Colors Black, Blue, White, Gold Space Gray, Silver, Gold, Rose Gold
Models M1803E1A A1634, A1687, A1690, A1699, iPhone8,2
SAR 0.70 W/kg (head)     1.66 W/kg (body)     1.12 W/kg (head)     1.14 W/kg (body)    
SAR EU 1.01 W/kg (head)     1.32 W/kg (body)     0.93 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, 12, 17, 20, 34, 38, 39, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30 - A1633
Speed HSPA 42.2/5.76 Mbps, LTE (4CA) Cat16 1024/150 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
  CDMA 800 & TD-SCDMA 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41 - A1634
Our Tests
Audio quality Noise -93.9dB / Crosstalk -93.7dB -
Battery (old) Endurance rating 86h -
Camera Photo / Video -
Display Contrast ratio: Infinite (nominal), 4.086 (sunlight) -
Loudspeaker -29.1 LUFS (Average) -
Performance AnTuTu: 217298 (v7), 341687 (v8) GeekBench: 8494 (v4.4), 2002 (v5.1) GFXBench: 33fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm SDM845 Snapdragon 845 (10 nm) Apple A9 (14/16 nm - maker dependant)
CPU Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver) Dual-core 1.84 GHz Twister
GPU Adreno 630 PowerVR GT7600 (six-core graphics)
OS Android 8.1 (Oreo), upgradable to Android 10, MIUI 12 iOS 9, upgradable to iOS 15.8.1
Selfie camera
Features - Face detection, HDR, panorama
Single 20 MP, f/2.0, (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 -93.4dB / Crosstalk -71.1dB
Battery (old) - Endurance rating 85h
Camera - Photo / Video
Display - Contrast ratio: 1382:1 (nominal), 3.530 (sunlight)
Loudspeaker - Voice 65dB / Noise 65dB / Ring 64dB
Performance - Basemark OS II 2.0: 2261