Product
Xiaomi Redmi K40 Pro+
Xiaomi Redmi K40 Pro+
Apple iPhone XR
Apple iPhone XR
Battery
Charging 33W wired, PD3.0, QC3, 100% in 52 min 15W wired, PD2.0, 50% in 30 minWireless (Qi)
Type Li-Po 4520 mAh Li-Ion 2942 mAh, non-removable (11.16 Wh)
Body
Build - Glass front (Corning-made glass), glass back (Corning-made glass), aluminum frame (7000 series)
Dimensions 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) 150.9 x 75.7 x 8.3 mm (5.94 x 2.98 x 0.33 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + eSIMNano-SIM + Nano-SIM (China)
Weight 196 g (6.91 oz) 194 g (6.84 oz)
  IP53 dust protected and water resistant (vertical water sprays) IP67 dust/water resistant (up to 1m for 30 min)Apple Pay (Visa, MasterCard, AMEX certified)
Comms
Bluetooth 5.2, A2DP, LE 5.0, A2DP, LE
Infrared port Yes -
NFC Yes Yes
Positioning GPS (L1+L5), GLONASS (G1), 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 Corning Gorilla Glass 5 Scratch-resistant glass
Resolution 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) 828 x 1792 pixels, 19.5:9 ratio (~326 ppi density)
Size 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) 6.1 inches, 90.3 cm2 (~79.0% screen-to-body ratio)
Type Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) Liquid Retina IPS LCD, 625 nits (HBM)
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer Face ID, accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2021, February 25 2018, September 12. Released 2018, October 26
Status Available. Released 2021, March 04 Discontinued
Main Camera
Features Color spectrum sensor, LED flash, HDR, panorama Quad-LED dual-tone flash, HDR (photo/panorama)
Single - 12 MP, f/1.8, 26mm (wide), 1/2.55", 1.4µm, PDAF, OIS
Triple 108 MP, f/1.8, 26mm (wide), 1/1.52", 0.7µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm -
Video 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+ 4K@24/30/60fps, 1080p@30/60/120/240fps, HDR, stereo sound rec.
Memory
Card slot No No
Internal 256GB 12GB RAM 64GB 3GB RAM, 128GB 3GB RAM, 256GB 3GB RAM
  UFS 3.1 NVMe
Misc
Colors Black, White, Aurora Black, Red, Yellow, Blue, Coral, White
Models - A2105, A1984, A2107, A2108, A2106, iPhone11,8
SAR - 1.13 W/kg (head)     1.16 W/kg (body)    
SAR EU - 0.99 W/kg (head)     0.99 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(AWS) / 1900 / 2100
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, 12, 13, 14, 17, 18, 19, 20, 25, 26, 29, 30, 32, 34, 38, 39, 40, 41, 66, 71
5G bands 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 -
Speed HSPA, LTE, 5G HSPA, LTE, EV-DO Rev.A 3.1 Mbps
Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G GSM / CDMA / HSPA / EVDO / LTE
  CDMA2000 1x CDMA2000 1xEV-DO
Platform
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Apple A12 Bionic (7 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Hexa-core (2x2.5 GHz Vortex + 4x1.6 GHz Tempest)
GPU Adreno 660 Apple GPU (4-core graphics)
OS Android 11, MIUI 12 iOS 12, upgradable to iOS 18.5
Selfie camera
Features HDR HDR
Single 20 MP, f/2.5, (wide), 1/3.4", 0.8µm 7 MP, f/2.2, 32mm (standard)SL 3D, (depth/biometrics sensor)
Video 1080p@30fps, 720p@120fps 1080p@60fps
Sound
3.5mm jack No No
Loudspeaker Yes, with stereo speakers Yes, with stereo speakers
  24-bit/192kHz Hi-Res audio -
Tests
Battery (old) - Endurance rating 78h
Performance - AnTuTu: 341196 (v7), 422465 (v8)GeekBench: 11437 (v4.4), 2690 (v5.1)GFXBench: 58fps (ES 3.1 onscreen)