Product
Xiaomi Mix 4
Xiaomi Mix 4
Apple iPhone 6 Plus
Apple iPhone 6 Plus
Battery
Charging 120W wired, PD3.0, QC4, 100% in 15 min 50W wireless, 100% in 28 min -
Stand-by - Up to 384 h (3G)
Talk time - Up to 24 h (3G)
Type Li-Po 4500 mAh Li-Po 2915 mAh, non-removable (11.1 Wh)
Body
Build Glass front (Gorilla Glass Victus), ceramic back, aluminum frame Glass front (Corning-made glass), aluminum back, aluminum frame
Dimensions 162.6 x 75.4 x 8 mm (6.40 x 2.97 x 0.31 in) 158.1 x 77.8 x 7.1 mm (6.22 x 3.06 x 0.28 in)
SIM Nano-SIM + Nano-SIM Nano-SIM
Weight 225 g (7.94 oz) 172 g (6.07 oz)
  IP53 dust protected and water resistant (vertical water sprays) Apple Pay (Visa, MasterCard, AMEX certified)
Comms
Bluetooth 5.2, A2DP, LE, aptX HD 4.0, A2DP, LE
Infrared port Yes -
NFC Yes Yes (Apple Pay only)
Positioning GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) GPS, GLONASS
Radio No No
USB USB Type-C 2.0 Lightning, USB 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot
Display
Protection Corning Gorilla Glass Victus Ion-strengthened glass, oleophobic coating
Resolution 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Size 6.67 inches, 107.4 cm2 (~87.6% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~67.8% screen-to-body ratio)
Type AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 800 nits (HBM) IPS LCD
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
  Ultra Wideband (UWB) support -
Launch
Announced 2021, August 10 2014, September 09. Released 2014, September 19
Status Available. Released 2021, August 16 Discontinued
Main Camera
Features Laser AF, color spectrum sensor, Dual-LED flash, HDR, panorama Dual-LED dual-tone flash, HDR
Single - 8 MP, f/2.2, 29mm (standard), 1/3.0", 1.5µm, PDAF, OIS
Triple 108 MP, f/1.9, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 8 MP, f/4.1, 120mm (periscope telephoto), PDAF, OIS, 5x optical zoom 13 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm -
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+ 1080p@60fps, 720p@240fps
Memory
Card slot No No
Internal 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM 16GB 1GB RAM, 64GB 1GB RAM, 128GB 1GB RAM
  UFS 3.1 -
Misc
Colors Ceramic Black, Ceramic White, Shadow Gray Space Gray, Silver, Gold
Models 2106118C A1522, A1524, iPhone7,1
SAR - 1.19 W/kg (head)     1.19 W/kg (body)    
SAR EU - 0.99 W/kg (head)     0.91 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - A1522 (GSM), A1522 (CDMA), A1524
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100 - A1522 (GSM), A1522 (CDMA), A1524
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 1, 2, 3, 4, 5, 7, 8, 13, 17, 18, 19, 20, 25, 26, 28, 29 - A1522 GSM, A1522 CDMA
5G bands 1, 3, 5, 8, 28, 41, 77, 78, 79 SA/NSA/Sub6 -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, EV-DO Rev.A 3.1 Mbps
Technology GSM / CDMA / HSPA / EVDO / LTE / 5G GSM / CDMA / HSPA / EVDO / LTE
  CDMA2000 1xEV-DO 1, 2, 3, 4, 5, 7, 8, 13, 17, 18, 19, 20, 25, 26, 28, 29, 38, 39, 40, 41 - A1524
Platform
Chipset Qualcomm SM8350 Snapdragon 888+ 5G (5 nm) Apple A8 (20 nm)
CPU Octa-core (1x2.99 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Dual-core 1.4 GHz Typhoon (ARM v8-based)
GPU Adreno 660 PowerVR GX6450 (quad-core graphics)
OS Android 11, MIUI 12.5 iOS 8, upgradable to iOS 12.5.7
Selfie camera
Features HDR face detection, HDR, FaceTime over Wi-Fi or Cellular
Single 20 MP, 27mm (wide), 1/3.4", 0.8µm, under display 1.2 MP, f/2.2, 31mm (standard)
Video 1080p@30fps 720p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes, with stereo speakers Yes
  24-bit/192kHz Hi-Res audio Tuned by Harman Kardon Snapdragon Sound 16-bit/44.1kHz audio
Tests
Audio quality - Noise -94dB / Crosstalk -72dB
Battery (old) - Endurance rating 79h
Camera - Photo / Video
Display - Contrast ratio: 1361 (nominal), 3.023 (sunlight)
Loudspeaker - Voice 67dB / Noise 65dB / Ring 66dB