Product
Xiaomi Redmi K40 Gaming
Xiaomi Redmi K40 Gaming
₹25,967
Apple iPhone 4s
Apple iPhone 4s
₹19,045
Battery
Charging 67W wired, PD3.0, QC3, 100% in 42 min -
Stand-by - Up to 200 h (3G)
Talk time - Up to 8 h (3G)
Type Li-Po 5065 mAh Li-Po 1432 mAh, non-removable (5.3 Wh)
Body
Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5) Glass front (Corning-made glass), glass back, stainless steel frame
Dimensions 161.9 x 76.9 x 8.3 mm (6.37 x 3.03 x 0.33 in) 115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in)
SIM Nano-SIM + Nano-SIM Micro-SIM
Weight 205 g (7.23 oz) 140 g (4.94 oz)
  Physical pop-up gaming triggers IP53 dust protected and water resistant (vertical water sprays) Scratch-resistant glass back panel
Comms
Bluetooth 5.2, A2DP, LE 4.0, A2DP, LE
Infrared port Yes -
NFC Yes -
Positioning GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC GPS, A-GPS, GLONASS
Radio No No
USB USB Type-C 2.0, OTG 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, hotspot
Display
Protection Corning Gorilla Glass 5 Corning Gorilla Glass, oleophobic coating
Resolution 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) 640 x 960 pixels, 3:2 ratio (~330 ppi density)
Size 6.67 inches, 107.4 cm2 (~86.3% screen-to-body ratio) 3.5 inches, 36.5 cm2 (~54.0% screen-to-body ratio)
Type OLED, 1B colors, 120Hz, HDR10+, 500 nits (typ) IPS LCD
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, compass, barometer Accelerometer, gyro, proximity, compass
Launch
Announced 2021, April 27 2011, October 04. Released 2011, October 14
Status Available. Released 2021, April 30 Discontinued
Main Camera
Features Color spectrum sensor, Dual-LED flash, HDR, panorama LED flash, panorama, HDR
Single - 8 MP, f/2.4, 35mm (standard), 1/3.2", 1.4µm, AF
Triple 64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide) 2 MP, f/2.4, (macro) -
Video 4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR 1080p@30fps
Memory
Card slot No No
Internal 128GB 6GB RAM, 128GB 8GB RAM, 128GB 12GB RAM, 256GB 8GB RAM, 256GB 12GB RAM 8GB 512MB RAM, 16GB 512MB RAM, 32GB 512MB RAM, 64GB 512MB RAM
  UFS 3.1 -
Misc
Colors Black, Gray, Silver, Bruce Lee Yellow Black, White
Models M2012K10C, M2104K10AC A1431, A1387, iPhone4,1
SAR - 1.18 W/kg (head)     0.98 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 / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 -
5G bands 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 -
Speed HSPA, LTE, 5G HSPA 14.4/5.76 Mbps
Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G GSM / CDMA / HSPA / EVDO
  CDMA2000 1x CDMA2000 1xEV-DO
Platform
Chipset Mediatek Dimensity 1200 (6 nm) Apple A5 (45 nm)
CPU Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) Dual-core 1.0 GHz Cortex-A9
GPU Mali-G77 MC9 PowerVR SGX543MP2
OS Android 11, MIUI 12.5 iOS 5, upgradable to iOS 9.3.6
Selfie camera
Features HDR -
Single 16 MP, f/2.5, (wide), 1/3.06" 1.0µm VGA, videocalling over Wi-Fi and 3G
Video 1080p@30fps, 720p@120fps, HDR 480p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes, with stereo speakers Yes
  24-bit/192kHz Hi-Res audio Tuned by JBL -
Tests
Audio quality - Noise -91.2dB / Crosstalk -93.0dB
Battery (old) - Endurance rating 45h
Camera - Photo / Video
Display - Contrast ratio: 1261:1 (nominal) / 2.269:1 (sunlight)
Loudspeaker - Voice 65dB / Noise 64dB / Ring 74dB
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