Side by side comparison and review of Lenovo S820 and Xiaomi Redmi 12. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 139.5 mm | 168.6 mm | Xiaomi Redmi 12 has greater height than Lenovo S820. |
| Width | 69.7 mm | 76.28 mm | Xiaomi Redmi 12 has greater width than Lenovo S820. |
| Depth | 9 mm | 8.17 mm | Xiaomi Redmi 12 is narrower than Lenovo S820. |
| Weight | 143 g | 198.5 g | Lenovo S820 is lighter than Lenovo S820. |
| Body Colour | Flamingo red | Midnight black | |
| Protection | - | Spill-resistant, dust-resistant | |
| Waterproof (Water-resistant) | - | - | Xiaomi Redmi 12 is waterproof. |
| IP rating | - | IP53 | |
| SAR Value | 0.572 W/kg (body) | - | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | Headset jack - mini-phone 3.5mm 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 | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 4.7" | 6.79" | Xiaomi Redmi 12 has larger screen size than Lenovo S820. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2460 x 1080 pixels | Xiaomi Redmi 12 has better screen resolution than Lenovo S820. |
| Display Format | HD | Full HD+ | |
| Pixel Density | 312 ppi | 396 ppi | Xiaomi Redmi 12 has better pixel density than Lenovo S820. |
| Max Brightness | - | 550 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| 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 | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | - |
| PROCESSOR | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Processor Type (CPU) | MediaTek | MediaTek Helio G88 | |
|---|---|---|---|
| Processor Number | MT6589 | - | |
| Clock Speed | 1.2 GHz | 2 GHz | Xiaomi Redmi 12 has higher clock speed than Lenovo S820. |
| Processor Core Qty | Quad-core | 8-core | Xiaomi Redmi 12 has higher processor core quantity than Lenovo S820. |
| Graphics System (GPU) | PowerVR SGX544 | ARM Mali-G52 |
| MEMORY | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| RAM | 1 GB | LPDDR4X SDRAM - 4 GB + up to 16 GB virtual extension | Xiaomi Redmi 12 has more RAM than Lenovo S820. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 4 GB | 128 GB | Xiaomi Redmi 12 has more internal memory than Lenovo S820. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 50 Megapixel | Xiaomi Redmi 12 has better camera resolution than Lenovo S820. |
| Lens Aperture | - | F/1.8 | |
| Focus Adjustment | Automatic | Automatic | |
| Face Recognition (Face ID) | Face detection | - | Lenovo S820 has face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | - | 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) | 2 Megapixel | 8 Megapixel | Xiaomi Redmi 12 has better front camera resolution than Lenovo S820. |
| Lens Aperture (Front) | - | F/2.1 | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Battery Capacity (Battery Size) | 2000 mAh | 5000 mAh | Xiaomi Redmi 12 has larger battery capacity than Lenovo S820. |
|---|---|---|---|
| Standby Time | 140 hours | 552 hours | Xiaomi Redmi 12 has longer standby time than Lenovo S820. |
| Talk Time | 1320 minutes | 2220 minutes | Xiaomi Redmi 12 has longer battery life when making calls than Lenovo S820. |
| Run Time Details | Talk (GSM): up to 1320 min Talk (WCDMA): up to 600 min Standby (GSM): up to 140 hrs Standby (WCDMA): up to 140 hrs |
Talk: up to 2220 min Standby: up to 552 hrs Playback (video): up to 16 hrs Reading: up to 26 hrs |
|
| Battery Technology | Lithium polymer | - |
| CELLULAR | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | Xiaomi Redmi 12 has more advanced generation mobile network. |
| Operating System | Android 4.2 (Jelly Bean) | Android 13 | |
| User Interface | - | MIUI 14 | |
| Navigation | GPS, A-GPS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 900 GSM, 1800 GSM, 1900 GSM | - | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | - | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | - | 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 802.11a/b/g/n | Wi-Fi | |
| Bluetooth | Bluetooth 3.0 | Bluetooth 5.3 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | - | Yes | Xiaomi Redmi 12 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Supported Digital Audio Standards | WAV, WMA, MP3, eAAC+ | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, WMV, H.264 | - |
| FEATURES | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor | Accelerometer, digital compass | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Active noise-cancellation | Fast Charging, IR blaster |
| OTHERS | Lenovo S820 | Xiaomi Redmi 12 |
|---|
| Included Accessories | USB cable, power adapter | Power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | - | IP53, SGS Low Blue Light Certification |
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