Xiaomi Mi 4s vs Xiaomi Redmi 4 (4X)

Phones Images
PHONES
Phone Names Xiaomi Mi 4s Xiaomi Redmi 4 (4X)
Network
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bandsHSDPA 850 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 3, 7, 38, 39, 40, 411, 3, 5, 7, 8, 38, 39, 40, 41
SpeedHSPA, LTE Cat4 150/50 MbpsHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/100 Mbps
TechnologyGSM / CDMA / HSPA / LTEGSM / HSPA / LTE
  TD-SCDMA-
Launch
Announced2016, February. Released 2016, March2017, May. Released 2017, May
StatusDiscontinuedDiscontinued
Body
Build-Glass front (Gorilla Glass), aluminum back, aluminum frame, plastic ends
Dimensions139.3 x 70.8 x 7.8 mm (5.48 x 2.79 x 0.31 in)139.2 x 70 x 8.7 mm (5.48 x 2.76 x 0.34 in)
SIMNano-SIM + Micro-SIMNano-SIM + Micro-SIM
Weight133 g (4.69 oz)150 g (5.29 oz)
Display
Protection-Corning Gorilla Glass (unspecified version)
Resolution1080 x 1920 pixels, 16:9 ratio (~441 ppi density)720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Size5.0 inches, 68.9 cm2 (~69.9% screen-to-body ratio)5.0 inches, 68.9 cm2 (~70.7% screen-to-body ratio)
TypeIPS LCDIPS LCD
Platform
CPUHexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57)Octa-core 1.4 GHz Cortex-A53
ChipsetQualcomm MSM8992 Snapdragon 808 (20 nm)Qualcomm MSM8940 Snapdragon 435 (28 nm)
GPUAdreno 418Adreno 505
OSAndroid 5.1 (Lollipop), upgradable to 7.0 (Nougat), MIUI 10Android 6.0.1 (Marshmallow), upgradable to 7.1.2 (Nougat), MIUI 11
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal64GB 3GB RAM16GB 2GB RAM, 16GB 3GB RAM, 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM
 eMMC 5.0eMMC 5.1
Main Camera
FeaturesDual-LED dual-tone flash, panorama, HDRLED flash, HDR, panorama
Single13 MP, f/2.0, PDAF13 MP, f/2.0, PDAF
Video1080p@30fps, 720p@120fps1080p@30fps
Selfie camera
Single5 MP, f/2.05 MP, f/2.2
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth4.1, A2DP4.2, A2DP, LE
Infrared portYesYes
NFCNoNo
PositioningGPS, GLONASS, BDSGPS, GLONASS, BDS
RadioNoFM radio
USBUSB Type-CmicroUSB 2.0
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspotWi-Fi 802.11 b/g/n, Wi-Fi Direct
Features
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery
Charging18W wired, QC2, 40% in 60 min-
Music play-Up to 87 h
Stand-by-Up to 432 h (3G)
Talk time-Up to 36 h (3G)
TypeLi-Ion 3260 mAh, non-removableLi-Po 4100 mAh, non-removable
Misc
ColorsBlack, White, Gold, PinkBlack, Gold
Models-2016060, 2016090, MAG138, MAE136, Redmi 4, Redmi 4X
PriceAbout 220 EURAbout 110 EUR
SAR-0.77 W/kg (head)     0.83 W/kg (body)
Tests
Audio quality Noise -94.9dB / Crosstalk -82.6dB Noise -94.3dB / Crosstalk -94dB
Battery life Endurance rating 75h Endurance rating 80h
Camera Photo / Video Photo / Video
Display Contrast ratio: 975:1 (nominal), 2.095 (sunlight) Contrast ratio: 915 (nominal), 2.920 (sunlight)
Loudspeaker Voice 73dB / Noise 68dB / Ring 82dB Voice 64dB / Noise 70dB / Ring 72dB
Performance Basemark OS II 2.0: 1545Basemark X: 12990 GeekBench: 1819 (v4.4) GFXBench: 5.1fps (ES 3.1 onscreen)
OUR TESTS
Audio qualityNoise -94.9dB / Crosstalk -82.6dBNoise -94.3dB / Crosstalk -94dB
Battery (old)Endurance rating 75hEndurance rating 80h
CameraPhoto / VideoPhoto / Video
DisplayContrast ratio: 975:1 (nominal), 2.095 (sunlight)Contrast ratio: 915 (nominal), 2.920 (sunlight)
LoudspeakerVoice 73dB / Noise 68dB / Ring 82dBVoice 64dB / Noise 70dB / Ring 72dB
PerformanceBasemark OS II 2.0: 1545Basemark X: 12990GeekBench: 1819 (v4.4) GFXBench: 5.1fps (ES 3.1 onscreen)