In depth comparison and review of Xiaomi Redmi 3S and Xiaomi MI 8. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 139.3 mm | 154.9 mm | Xiaomi MI 8 has greater height than Xiaomi Redmi 3S. |
| Width | 69.6 mm | 74.8 mm | Xiaomi MI 8 has greater width than Xiaomi Redmi 3S. |
| Depth | 8.5 mm | 7.6 mm | Xiaomi MI 8 is narrower than Xiaomi Redmi 3S. |
| Weight | 144 g | 175 g | Xiaomi Redmi 3S is lighter than Xiaomi Redmi 3S. |
| Body Colour | Gold | Black | Blue | |
| Body Material | Metal | Glass, 7000 Series aluminium | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.43 W/kg (body), 0.62 W/kg (head) | 1.662 W/kg (body), 0.701 W/kg (head) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B | USB Type-C - 24 pin USB-C | |
| 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 3S | Xiaomi MI 8 |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | AMOLED | |
| Screen Size (Display Size) | 5" | 6.21" | Xiaomi MI 8 has larger screen size than Xiaomi Redmi 3S. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2248 x 1080 pixels | Xiaomi MI 8 has better screen resolution than Xiaomi Redmi 3S. |
| Display Format | HD | Full HD+ | |
| Pixel Density | - | 402 ppi | |
| Aspect Ratio | - | 18.7:9 | |
| Max Brightness | - | 600 cd/m² | |
| Contrast Ratio | - | 60000:1 | |
| Display Enhancement Technology | - | Sunlight mode | |
| Display Features | - | Always-on display, Reading mode, Colour temperature adjustment, DCI-P3 Wide colour gamut |
| PROCESSOR | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 430 | Qualcomm Snapdragon 845 | |
|---|---|---|---|
| Clock Speed | 1.4 GHz | 2.8 GHz | Xiaomi MI 8 has higher clock speed than Xiaomi Redmi 3S. |
| 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 630 |
| MEMORY | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 6 GB | Xiaomi MI 8 has more RAM than Xiaomi Redmi 3S. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | Xiaomi MI 8 has more internal memory than Xiaomi Redmi 3S. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | - |
| CAMERA | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | Xiaomi Redmi 3S has better camera resolution than Xiaomi MI 8. |
| Sensor Name | - | Sony Exmor RS IMX363 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.8 | Xiaomi MI 8 has better lens aperture than Xiaomi Redmi 3S. |
| Lens Construction | 5-element | - | |
| Optical Image Stabiliser (OIS) | - | 4-axis OIS (Optical Image Stabilisation) | Xiaomi MI 8 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | HDR | |
| Camera Modes | Panorama, manual mode | Burst mode, Panorama, portrait mode, AR Emoji, AI Beautify | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi MI 8 has face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | Dual Pixel Autofocus technology, AI Dual camera, AI scene detection, AI Beautify, AI dynamic bokeh, AI studio lighting, AI short video editing, AI high-res photos |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Telephoto lens | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Camera Features (2nd Camera) | - | Portrait lens |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 20 Megapixel | Xiaomi MI 8 has better front camera resolution than Xiaomi Redmi 3S. |
| Lens Aperture (Front) | F/2.2 | - | |
| Special Effects (Front) | - | Mirror | |
| Camera Modes (Front) | Beautify Selfie mode | AR Emoji, AI portrait mode | |
| Face Recognition (Face ID) | Face recognition | Face recognition | Both phones have face detection. |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - | |
| Camera Features (Front) | - | Self-timer, AI detection of 10 different scenes, 3D Beautify |
| SECOND FRONT CAMERA |
|---|
| Camera Features (2nd Front) | - | Flood Illuminator, Dot Projector |
|---|
| BATTERY AND CHARGING | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| Battery Capacity (Battery Size) | 4100 mAh | 3400 mAh | Xiaomi Redmi 3S has larger battery capacity than Xiaomi MI 8. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0+ | Xiaomi MI 8 has fast charging technology. |
| CELLULAR | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| Technology | WCDMA (UMTS) / GSM | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 8.1 Oreo | |
| User Interface | MIUI V7 | MIUI 9.5 | |
| Payment Technology | - | Android Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 900 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 3, Band 5, Band 40 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 34, Band 38, Band 39, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 1800+, FDD 850, TDD 2300 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 DD, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 | |
| Bluetooth Profiles | HID | - | |
| NFC | - | Yes | Xiaomi MI 8 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| Supported Digital Audio Standards | AAC, PCM, MP3, FLAC, AC-3, AAC +, eAAC+, MIDI | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, XviD, MPEG-4, ASF, DivX, MPEG-2, H.264, H.263, M4V, VP8, Sorenson Spark | MKV, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP |
| FEATURES | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| 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 | Ambient light sensor, proximity sensor, digital compass, gyro sensor, gravity sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, gyro sensor, hall sensor, Time of Flight (ToF), infrared (IR) sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Security Technology | - | IR face unlock | |
| Additional Phone Features | Infrared remote control, Reading mode | Face Unlock, MU-MIMO technology |
| OTHERS | Xiaomi Redmi 3S | Xiaomi MI 8 |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Power adapter, SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, Mi 8 Protective cover |
|---|
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
