Xiaomi Redmi 4X vs. Xiaomi Redmi S2

Phone Comparison, Reviews and Tests

Detailed comparison and review of Xiaomi Redmi 4X and Xiaomi Redmi S2. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

Xiaomi Redmi 4X vs. Xiaomi Redmi S2 Comparison Chart
DESIGN AND DIMENSIONS Xiaomi Redmi 4X Xiaomi Redmi S2
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 139.24 mm 160.73 mm Xiaomi Redmi S2 has greater height than Xiaomi Redmi 4X.
Width 69.96 mm 77.26 mm Xiaomi Redmi S2 has greater width than Xiaomi Redmi 4X.
Depth 8.65 mm 8.1 mm Xiaomi Redmi S2 is narrower than Xiaomi Redmi 4X.
Weight 146 g 170 g Xiaomi Redmi 4X is lighter than Xiaomi Redmi 4X.
Body Colour Black Grey | Blue | Rose gold | Gold | Black | Dark grey
Body Material Metal -
Waterproof (Water-resistant) - -
SAR Value 1.5 W/kg (body), 0.583 W/kg (head) 1.577 W/kg (body), 0.429 W/kg (head)
Connector Type Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Micro SIM, nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
SIM Card Configuration Details Micro SIM + nano SIM/microSD -
DISPLAY Xiaomi Redmi 4X Xiaomi Redmi S2
Display Type - LCD display
Screen Size (Display Size) 5" 5.99" Xiaomi Redmi S2 has larger screen size than Xiaomi Redmi 4X.
Screen Resolution (Display Resolution) 1280 x 720 pixels 1440 x 720 pixels Xiaomi Redmi S2 has better screen resolution than Xiaomi Redmi 4X.
Display Format HD HD+
Pixel Density - 269 ppi
Aspect Ratio - 18:9
Max Brightness 450 cd/m² 450 cd/m² Both phones have the same display brightness
Colour Depth - 16.7 million colours
Contrast Ratio 1000:1 1000:1 Both phones have the same display contrast ratio.
Display Features 2.5D Glass, Night Display, Reading mode, Colour temperature adjustment Night Display, Sunlight Display, Reading mode, Colour temperature adjustment
Display Protection (Screen Protector) Corning Gorilla Glass (scratch resistant glass) -
PROCESSOR Xiaomi Redmi 4X Xiaomi Redmi S2
Processor Type (CPU) Qualcomm Snapdragon 435 Qualcomm Snapdragon 625
Clock Speed 1.4 GHz -
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 505 Qualcomm ADRENO 506
MEMORY Xiaomi Redmi 4X Xiaomi Redmi S2
RAM 3 GB 3 GB Both phones have the same RAM size.
Internal Memory Size (Storage Capacity) 32 GB 32 GB Both phones have the same internal memory capacity.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 128 GB microSDHC, microSDXC - up to 256 GB
CAMERA Xiaomi Redmi 4X Xiaomi Redmi S2
MAIN CAMERA
Number of Main Cameras 1 2
Sensor Resolution 13 Megapixel 12 Megapixel Xiaomi Redmi 4X has better camera resolution than Xiaomi Redmi S2.
Lens Aperture F/2.0 F/2.2 Xiaomi Redmi 4X has better lens aperture than Xiaomi Redmi 4X.
Lens Construction 5-element -
Focus Adjustment Automatic Automatic
Special Effects HDR HDR, low light enhancement
Camera Modes Burst mode, Panorama Panorama, portrait mode, AI portrait mode
Face Recognition (Face ID) Face recognition Face recognition Both phones have face detection.
Light Source LED light LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF) Phase Detect Auto-Focus (PDAF), AI Dual camera
SECOND CAMERA
Sensor Resolution (2nd Camera) - 5 Megapixel
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 5 Megapixel 16 Megapixel Xiaomi Redmi S2 has better front camera resolution than Xiaomi Redmi 4X.
Lens Type (Front) - Wide-angle lens
Lens Aperture (Front) F/2.2 F/2.0 Xiaomi Redmi S2 has better front lens aperture than Xiaomi Redmi 4X.
Special Effects (Front) - Precise bokeh effect, AI Beautify 4.0
HDR Mode (Front) - Auto HDR mode
Camera Modes (Front) Beautify Selfie mode Wide selfie mode
Face Recognition (Face ID) Face recognition - Xiaomi Redmi 4X has face detection.
Light Source (Front) - LED flash
BATTERY AND CHARGING Xiaomi Redmi 4X Xiaomi Redmi S2
Battery Capacity (Battery Size) 4100 mAh 3080 mAh Xiaomi Redmi 4X has larger battery capacity than Xiaomi Redmi S2.
Standby Time 432 hours -
Talk Time 2160 minutes -
Run Time Details Talk: up to 2160 min
Playback (video): up to 15 hrs
Gaming: up to 13 hrs
Standby (LTE): up to 432 hrs
Playback (audio): up to 87 hrs
Reading: up to 26 hrs
Navigation: up to 15 hrs
-
CELLULAR Xiaomi Redmi 4X Xiaomi Redmi S2
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
User Interface MIUI 8 MIUI 9
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS Xiaomi Redmi 4X Xiaomi Redmi S2
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 5, Band 8 Band 1, Band 2, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 850, 900 2100, 1900, 850, 900
4G LTE Band Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40
4G LTE Frequency FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300
Wireless Interface Infrared (IrDA), IEEE 802.11b/g/n Infrared (IrDA), IEEE 802.11b/g/n
Bluetooth Bluetooth 4.1 Bluetooth 4.2
Bluetooth Profiles HID -
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi Redmi 4X Xiaomi Redmi S2
Supported Digital Audio Standards WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB
Supported Digital Video Standards MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265 VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP
FEATURES Xiaomi Redmi 4X Xiaomi Redmi S2
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, ambient light sensor, proximity sensor, gyro sensor Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor
Security Devices Fingerprint reader Face recognition, fingerprint reader
Additional Phone Features Infrared remote control Infrared remote control, Dual microphones
OTHERS Xiaomi Redmi 4X Xiaomi Redmi S2
Included Accessories USB cable, power adapter, SIM card removal tool USB cable, power adapter, SIM card removal tool, clear soft case
Other projects: