Detailed comparison and review of Samsung Galaxy S21 FE 5G and Xiaomi Redmi Note 12 5G. 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 | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-G990B/DS | - | |
| Form Factor | Touch | Touch | |
| Height | 155.7 mm | 165.88 mm | Xiaomi Redmi Note 12 5G has greater height than Samsung Galaxy S21 FE 5G. |
| Width | 74.5 mm | 76.21 mm | Xiaomi Redmi Note 12 5G has greater width than Samsung Galaxy S21 FE 5G. |
| Depth | 7.9 mm | 7.98 mm | Samsung Galaxy S21 FE 5G is narrower than Samsung Galaxy S21 FE 5G. |
| Weight | 177 g | 189 g | Samsung Galaxy S21 FE 5G is lighter than Samsung Galaxy S21 FE 5G. |
| Body Colour | Olive | Graphite | White | Lavender | Ice blue | Forest green | Onyx grey | |
| Protection | Dustproof, splashproof, water-resistant | Dustproof, splashproof | |
| Waterproof (Water-resistant) | - | - | Xiaomi Redmi Note 12 5G is waterproof. |
| IP rating | IP68 | IP53 | |
| SAR Value | 1.48 W/kg (body), 0.952 W/kg (head), 2.91 W/kg (limb) | 0.68 W/kg (head), 0.911 W/kg (body), 2.395 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Infinity-O Dynamic AMOLED 2X | AMOLED | |
| Screen Size (Display Size) | 6.4" | 6.67" | Xiaomi Redmi Note 12 5G has larger screen size than Samsung Galaxy S21 FE 5G. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2400 x 1080 pixels | Xiaomi Redmi Note 12 5G has better screen resolution than Samsung Galaxy S21 FE 5G. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 401 ppi | 395 ppi | Samsung Galaxy S21 FE 5G has better pixel density than Xiaomi Redmi Note 12 5G. |
| Max Brightness | - | 1200 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 4500000:1 | |
| HDR Technology | HDR10+ | - | |
| Display Enhancement Technology | Eye Comfort Shield | - | |
| Display Refresh Rate | 120 Hz | 120 Hz | Both phones have the same refresh rate. |
| Touch Sampling Rate | - | 240 Hz | |
| Display Features | AOD(Always On Display), Infinity O display, Video Wallpaper | Sunlight Display, Reading mode, DCI-P3 Wide colour gamut, DotDisplay, E2 Pro | |
| Display Protection (Screen Protector) | Corning Gorilla Glass Victus (scratch resistant glass) | - |
| PROCESSOR | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| Processor Type (CPU) | - | Qualcomm Snapdragon 4 Gen 1 | |
|---|---|---|---|
| Clock Speed | 2.84 GHz | 2 GHz | Samsung Galaxy S21 FE 5G has higher clock speed than Xiaomi Redmi Note 12 5G. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | - | Qualcomm ADRENO 619 |
| MEMORY | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| RAM | 6 GB | LPDDR4X SDRAM - 6 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| User Memory | 101.1 GB | - | |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 48 Megapixel | Xiaomi Redmi Note 12 5G has better camera resolution than Samsung Galaxy S21 FE 5G. |
| Sensor Size | 1/1.76" | 1/2.76" | Xiaomi Redmi Note 12 5G has better camera sensor size than Samsung Galaxy S21 FE 5G. |
| Sensor Name | - | Samsung ISOCELL JN1 | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | 79 degree(s) | - | |
| Pixel Size | 1.8 μm | 0.64 μm | Samsung Galaxy S21 FE 5G has larger camera pixel size than Xiaomi Redmi Note 12 5G. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy S21 FE 5G has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Optical Zoom | 3x | - | |
| Digital Zoom | 30x | - | |
| Special Effects | Face retouch, Grid Line | Bokeh effect | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Night mode, portrait mode | Portrait mode | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1280 x 720 (720p) at 960 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Dual recording | 4-in-1 to 1.28μm pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 8 Megapixel | Samsung Galaxy S21 FE 5G has better second camera resolution than Xiaomi Redmi Note 12 5G. |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/4" | |
| Sensor Name (2nd Camera) | - | Omnivision OV08D sensor | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Lens Element Qty (2nd Camera) | - | 5-element | |
| Field of View (2nd Camera) | 123 degree(s) | 118 degree(s) | Samsung Galaxy S21 FE 5G has larger second camera lens field of view than Xiaomi Redmi Note 12 5G. |
| Pixel Size (2nd Camera) | 1.12 μm | 1.12 μm | Both phones have the same second camera pixel size. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 8 Megapixel | 2 Megapixel | Samsung Galaxy S21 FE 5G has higher resolution third camera than Xiaomi Redmi Note 12 5G. |
|---|---|---|---|
| Lens Type (3rd Camera) | Telephoto lens | - | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Field of View (3rd Camera) | 32 degree(s) | - | |
| Pixel Size (3rd Camera) | 1 μm | - | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | Space Zoom x30 | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 13 Megapixel | Samsung Galaxy S21 FE 5G has better front camera resolution than Xiaomi Redmi Note 12 5G. |
| Sensor Size (Front) | - | 1/3.0" | |
| Lens Aperture (Front) | F/2.2 | F/2.45 | Samsung Galaxy S21 FE 5G has better front lens aperture than Samsung Galaxy S21 FE 5G. |
| Lens Element Qty (Front) | - | 5-element | |
| Field of View (Front) | 81 degree(s) | - | |
| Pixel Size (Front) | 0.8 μm | - | |
| Focus Adjustment | Focus free | - | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 5000 mAh | Xiaomi Redmi Note 12 5G has larger battery capacity than Samsung Galaxy S21 FE 5G. |
|---|---|---|---|
| Fast Charging Technology | Samsung Fast Charging | Mi-FC fast charging technology | Both phones have fast charging technology. |
| Wireless Charging | Yes | - | Samsung Galaxy S21 FE 5G can be charged wirelessly. |
| Wireless Charging Standards | Wireless PowerShare | - | |
| Talk Time | 2220 minutes | 2040 minutes | Samsung Galaxy S21 FE 5G has longer battery life when making calls than Xiaomi Redmi Note 12 5G. |
| Run Time Details | Talk (LTE): up to 2220 min Active online usage (LTE): up to 13 hrs Active online usage (Wi-Fi): up to 13 hrs Playback (video): up to 16 hrs Playback (audio): up to 79 hrs |
Talk: up to 2040 min Gaming: up to 14 hrs Playback (YouTube): up to 21 hrs |
| CELLULAR | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
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| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | Android 12 | Android 12 | |
| User Interface | - | MIUI 14 | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 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 4, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 26, Band 28, Band 32, Band 38, Band 40, Band 41, Band 66 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 32, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n78, n40 | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n40 | |
| 5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3500, TDD 2300 | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| MEDIA | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
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| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, 3GP, M4V, WebM, 3G2, MP4 | - | |
| Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound | - |
| FEATURES | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| Sensors | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope | |
|---|---|---|---|
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | MIMO technology, Fast Charging, Samsung KNOX, Samsung DeX support, Samsung Smart Switch, Game mode | Graphite cooling, IR blaster, coin vibration motor |
| OTHERS | Samsung Galaxy S21 FE 5G | Xiaomi Redmi Note 12 5G |
|---|
| Included Accessories | SIM card removal tool, USB-C cable | 33W charger | |
|---|---|---|---|
| Compliant Standards | IP68 | IP53, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification | |
| Max Depth of Water Resistance | 1.5 m | - |
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