Xiaomi Redmi S2 vs. Xiaomi Redmi 7

Phone Comparison, Reviews and Tests

Detailed comparison and review of Xiaomi Redmi S2 and Xiaomi Redmi 7. 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 S2 vs. Xiaomi Redmi 7 Comparison Chart
DESIGN AND DIMENSIONS Xiaomi Redmi S2 Xiaomi Redmi 7
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 160.73 mm 158.73 mm Xiaomi Redmi S2 has greater height than Xiaomi Redmi 7.
Width 77.26 mm 75.58 mm Xiaomi Redmi S2 has greater width than Xiaomi Redmi 7.
Depth 8.1 mm 8.47 mm Xiaomi Redmi S2 is narrower than Xiaomi Redmi S2.
Weight 170 g 180 g Xiaomi Redmi S2 is lighter than Xiaomi Redmi S2.
Body Colour Grey | Blue | Rose gold | Gold | Black | Dark grey Comet blue
Waterproof (Water-resistant) - -
SAR Value 1.577 W/kg (body), 0.429 W/kg (head) 1.251 W/kg (body), 0.577 W/kg (head), 2.98 W/kg (limb)
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) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Xiaomi Redmi S2 Xiaomi Redmi 7
Display Type LCD display LCD display
Screen Size (Display Size) 5.99" 6.26" Xiaomi Redmi 7 has larger screen size than Xiaomi Redmi S2.
Screen Resolution (Display Resolution) 1440 x 720 pixels 1520 x 720 pixels Xiaomi Redmi 7 has better screen resolution than Xiaomi Redmi S2.
Display Format HD+ HD+
Pixel Density 269 ppi 269 ppi Both phones have the same pixel density.
Aspect Ratio 18:9 19:9
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 1500:1 Xiaomi Redmi 7 has better display contrast ratio than Xiaomi Redmi S2.
Display Enhancement Technology - Sunlight mode
Display Features Night Display, Sunlight Display, Reading mode, Colour temperature adjustment Reading mode, Colour temperature adjustment, Dot Drop display
Display Protection (Screen Protector) - Corning Gorilla Glass 5 (scratch resistant glass)
PROCESSOR Xiaomi Redmi S2 Xiaomi Redmi 7
Processor Type (CPU) Qualcomm Snapdragon 625 Qualcomm Snapdragon 632
Clock Speed - 1.8 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 506 Qualcomm ADRENO 506
MEMORY Xiaomi Redmi S2 Xiaomi Redmi 7
RAM 3 GB LPDDR3 SDRAM - 2 GB Xiaomi Redmi S2 has more RAM than Xiaomi Redmi 7.
Internal Memory Size (Storage Capacity) 32 GB 16 GB Xiaomi Redmi S2 has more internal memory than Xiaomi Redmi 7.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 256 GB microSDHC, microSDXC - up to 512 GB
CAMERA Xiaomi Redmi S2 Xiaomi Redmi 7
MAIN CAMERA
Number of Main Cameras 2 2
Sensor Resolution 12 Megapixel 12 Megapixel Both phones have the same camera resolution.
Lens Aperture F/2.2 F/2.2 Both phones have the same camera lens aperture.
Pixel Size - 1.25 μm
Focus Adjustment Automatic Automatic
Special Effects HDR, low light enhancement HDR
Camera Modes Panorama, portrait mode, AI portrait mode AI portrait mode, AI Beautify 4.0
Face Recognition (Face ID) Face recognition Face recognition Both phones have face detection.
Light Source LED flash 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, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 1280 x 720 (720p) at 120 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), AI Dual camera AI Dual camera, AI scene detection, 27 different scenes
SECOND CAMERA
Sensor Resolution (2nd Camera) 5 Megapixel 2 Megapixel Xiaomi Redmi S2 has better second camera resolution than Xiaomi Redmi 7.
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 16 Megapixel 8 Megapixel Xiaomi Redmi S2 has better front camera resolution than Xiaomi Redmi 7.
Lens Type (Front) Wide-angle lens -
Lens Aperture (Front) F/2.0 F/2.0 Both phones have the same front camera lens aperture.
Pixel Size (Front) - 1.12 μm
Special Effects (Front) Precise bokeh effect, AI Beautify 4.0 HDR
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Wide selfie mode AI portrait mode, AI Beautify 4.0
Face Recognition (Face ID) - Face recognition Xiaomi Redmi 7 has face detection.
Light Source (Front) LED flash Display flash
Camera Features (Front) - Selfie countdown
BATTERY AND CHARGING Xiaomi Redmi S2 Xiaomi Redmi 7
Battery Capacity (Battery Size) 3080 mAh 4000 mAh Xiaomi Redmi 7 has larger battery capacity than Xiaomi Redmi S2.
CELLULAR Xiaomi Redmi S2 Xiaomi Redmi 7
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
User Interface MIUI 9 -
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo, QZSS
COMMUNICATIONS Xiaomi Redmi S2 Xiaomi Redmi 7
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1900 GSM, 2100 GSM
3G UMTS Band Band 1, Band 2, Band 5, Band 8 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 850, 900 2100, 1900, 1700, 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 2, 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 1900 PCS, 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 4.2 Bluetooth 4.2
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi Redmi S2 Xiaomi Redmi 7
Supported Digital Audio Standards WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, SBC, apt-X HD
Supported Digital Video Standards VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP MKV, MPEG-4, H.264, M4V
FEATURES Xiaomi Redmi S2 Xiaomi Redmi 7
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, digital compass, gyro sensor Accelerometer, ambient light sensor, digital compass, distance sensor
Security Devices Face recognition, fingerprint reader Fingerprint reader
Additional Phone Features Infrared remote control, Dual microphones Infrared remote control
OTHERS Xiaomi Redmi S2 Xiaomi Redmi 7
Included Accessories USB cable, power adapter, SIM card removal tool, clear soft case Protective cover, USB cable, power adapter, SIM card removal tool
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