Product
Xiaomi Redmi K50 Ultra
Xiaomi Redmi K50 Ultra
Apple iPhone 7
Apple iPhone 7
Battery
Charging 120W wired, PD3.0, 100% in 19 min -
Talk time - Up to 14 h (3G)
Type Li-Po 5000 mAh Li-Ion 1960 mAh, non-removable (7.45 Wh)
Body
Build - Glass front (Corning-made glass), aluminum back, aluminum frame
Dimensions 163.1 x 75.9 x 8.6 mm (6.42 x 2.99 x 0.34 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 202 g (7.13 oz) 138 g (4.87 oz)
  - IP67 dust/water resistant (up to 1m for 30 min)Apple Pay (Visa, MasterCard, AMEX certified)
Comms
Bluetooth 5.2, A2DP, LE, aptX HD, aptX Adaptive 4.2, A2DP, LE
Infrared port Yes -
NFC Yes Yes
Positioning GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) GPS, GLONASS, GALILEO, QZSS
Radio No No
USB USB Type-C 2.0, OTG 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 - Ion-strengthened glass
Resolution 1220 x 2712 pixels, 20:9 ratio (~446 ppi density) 750 x 1334 pixels, 16:9 ratio (~326 ppi density)
Size 6.67 inches, 107.4 cm2 (~86.7% screen-to-body ratio) 4.7 inches, 60.9 cm2 (~65.6% screen-to-body ratio)
Type OLED, 68B colors, 144Hz, HDR10+, Dolby Vision Retina IPS LCD, 625 nits (typ)
  - 3D Touch display & home button
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2022, August 11 2016, September 07. Released 2016, September 16
Status Available. Released 2022, August 25 Discontinued
Main Camera
Features Color spectrum sensor, LED flash, HDR, panorama Quad-LED dual-tone flash, HDR
Single - 12 MP, f/1.8, 28mm (wide), 1/3.0", PDAF, OIS
Triple 108 MP, f/1.6, (wide), 1/1.67", PDAF, OIS 8 MP, f/2.2, 120˚, (ultrawide) 2 MP, f/2.4, (macro) -
Video 4K@30/60fps, 1080p@30/60/120/240/960fps 4K@30fps, 1080p@30/60/120fps, 720p@240fps
Memory
Card slot No No
Internal 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM 32GB 2GB RAM, 128GB 2GB RAM, 256GB 2GB RAM
  UFS 3.1 NVMe
Misc
Colors Black, Gray, Blue, Mercedes AMG Jet Black, Black, Silver, Gold, Rose Gold, Red
Models 22081212C A1660, A1778, A1779, A1780, A1853, A1866, iPhone9,1, iPhone9,3
SAR - 1.19 W/kg (head)     1.19 W/kg (body)    
SAR EU - 1.38 W/kg (head)     1.34 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - A1660, A1778
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - A1660, A1778
4G bands 1, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30, 38, 39, 40, 41 - A1660, A1778
5G bands 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE (3CA) Cat9 450/50 Mbps, EV-DO Rev.A 3.1 Mbps
Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G GSM / CDMA / HSPA / EVDO / LTE
  CDMA2000 1x CDMA2000 1xEV-DO & TD-SCDMA - A1660
Platform
Chipset Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) Apple A10 Fusion (16 nm)
CPU Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) Quad-core 2.34 GHz (2x Hurricane + 2x Zephyr)
GPU Adreno 730 PowerVR Series7XT Plus (six-core graphics)
OS Android 12, MIUI 13 iOS 10.0.1, upgradable to iOS 15.8.4
Selfie camera
Features HDR Face detection, HDR, panorama
Single 20 MP, (wide) 7 MP, f/2.2, 32mm (standard)
Video 1080p@30/60fps, 720p@120fps 1080p@30fps
Sound
3.5mm jack No No
Loudspeaker Yes, with stereo speakers Yes, with stereo speakers
  24-bit/192kHz Hi-Res audio Snapdragon Sound -
Tests
Audio quality - Noise -92.4dB / Crosstalk -80.9dB
Battery (old) - Endurance rating 61h
Camera - Photo / Video
Display - Contrast ratio: 1603:1 (nominal), 3.964 (sunlight)
Loudspeaker - Voice 67dB / Noise 73dB / Ring 75dB
Performance - Basemark OS II 2.0: 3416