Detailed comparison and review of Xiaomi Redmi 3S and Xiaomi Redmi 12. 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.
| DESIGN AND DIMENSIONS | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 139.3 mm | 168.6 mm | Xiaomi Redmi 12 has greater height than Xiaomi Redmi 3S. |
| Width | 69.6 mm | 76.28 mm | Xiaomi Redmi 12 has greater width than Xiaomi Redmi 3S. |
| Depth | 8.5 mm | 8.17 mm | Xiaomi Redmi 12 is narrower than Xiaomi Redmi 3S. |
| Weight | 144 g | 198.5 g | Xiaomi Redmi 3S is lighter than Xiaomi Redmi 3S. |
| Body Colour | Gold | Midnight black | |
| Body Material | Metal | - | |
| Protection | - | Spill-resistant, dust-resistant | |
| Waterproof (Water-resistant) | - | - | Xiaomi Redmi 12 is waterproof. |
| IP rating | - | IP53 | |
| SAR Value | 0.43 W/kg (body), 0.62 W/kg (head) | - | |
| Integrated Components | - | FM radio | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM, nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Micro SIM + nano SIM/microSD | Nano SIM + nano SIM/microSD |
| DISPLAY | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Screen Size (Display Size) | 5" | 6.79" | Xiaomi Redmi 12 has larger screen size than Xiaomi Redmi 3S. |
|---|---|---|---|
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2460 x 1080 pixels | Xiaomi Redmi 12 has better screen resolution than Xiaomi Redmi 3S. |
| Display Format | HD | Full HD+ | |
| Pixel Density | - | 396 ppi | |
| Max Brightness | - | 550 cd/m² | |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | - | Reading mode 3.0 | |
| Display Refresh Rate | - | 90 Hz | |
| Display Features | - | Reading mode, Dot Display, AdaptiveSync technology, 70% NTSC |
| PROCESSOR | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 430 | MediaTek Helio G88 | |
|---|---|---|---|
| Clock Speed | 1.4 GHz | 2 GHz | Xiaomi Redmi 12 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 | - | Xiaomi Redmi 3S has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 505 | ARM Mali-G52 |
| MEMORY | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 4 GB + up to 16 GB virtual extension | Xiaomi Redmi 12 has more RAM than Xiaomi Redmi 3S. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 128 GB | Xiaomi Redmi 12 has more internal memory than Xiaomi Redmi 3S. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 50 Megapixel | Xiaomi Redmi 12 has better camera resolution than Xiaomi Redmi 3S. |
| Lens Aperture | F/2.0 | F/1.8 | Xiaomi Redmi 12 has better lens aperture than Xiaomi Redmi 3S. |
| Lens Construction | 5-element | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | - | |
| Camera Modes | Panorama, manual mode | - | |
| 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 | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 120 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | Xiaomi Redmi 12 has better front camera resolution than Xiaomi Redmi 3S. |
| Lens Aperture (Front) | F/2.2 | F/2.1 | Xiaomi Redmi 12 has better front lens aperture than Xiaomi Redmi 3S. |
| Camera Modes (Front) | Beautify Selfie mode | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi 3S has face detection. |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Battery Capacity (Battery Size) | 4100 mAh | 5000 mAh | Xiaomi Redmi 12 has larger battery capacity than Xiaomi Redmi 3S. |
|---|---|---|---|
| Standby Time | - | 552 hours | |
| Talk Time | - | 2220 minutes | |
| Run Time Details | - | Talk: up to 2220 min Standby: up to 552 hrs Playback (video): up to 16 hrs Reading: up to 26 hrs |
| CELLULAR | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 13 | |
| User Interface | MIUI V7 | MIUI 14 | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 900 GSM, 1900 GSM | - | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | Band 3, Band 5, Band 40 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 1800+, FDD 850, TDD 2300 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11b/g/n | Wi-Fi | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.3 | |
| Bluetooth Profiles | HID | - | |
| NFC | - | Yes | Xiaomi Redmi 12 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Supported Digital Audio Standards | AAC, PCM, MP3, FLAC, AC-3, AAC +, eAAC+, MIDI | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, XviD, MPEG-4, ASF, DivX, MPEG-2, H.264, H.263, M4V, VP8, Sorenson Spark | - |
| FEATURES | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Phone Functions | 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, digital compass | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Infrared remote control, Reading mode | Fast Charging, IR blaster |
| OTHERS | Xiaomi Redmi 3S | Xiaomi Redmi 12 |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | - | IP53, SGS Low Blue Light Certification |
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