In depth comparison and review of Alcatel 1S (2021) and Realme C31. 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 | Alcatel 1S (2021) | Realme C31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | RMX3501 | |
| Form Factor | Touch | Touch | |
| Height | 165.64 mm | 164.7 mm | Alcatel 1S (2021) has greater height than Realme C31. |
| Width | 75.59 mm | 76.1 mm | Realme C31 has greater width than Alcatel 1S (2021). |
| Depth | 8.8 mm | 8.4 mm | Realme C31 is narrower than Alcatel 1S (2021). |
| Weight | 190 g | 197 g | Alcatel 1S (2021) is lighter than Alcatel 1S (2021). |
| Body Colour | - | Light silver | Dark green | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 2.99 W/kg (limb), 1.42 W/kg (body), 0.42 W/kg (head) | 1.147 W/kg (body), 0.957 W/kg (head), 2.663 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 | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Alcatel 1S (2021) | Realme C31 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 6.52" | 6.5" | Alcatel 1S (2021) has larger screen size than Realme C31. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 1600 x 720 pixels | Both phones have the same screen resolution. |
| Display Format | HD+ | HD+ | |
| Aspect Ratio | 20:9 | 20:9 | |
| Colour Depth | - | 16.7 million colours | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 120 Hz | |
| Display Features | 2.5D Glass, Reading mode, Dark mode, Vast Display, One-handed Mode | Ultra-clear View |
| PROCESSOR | Alcatel 1S (2021) | Realme C31 |
|---|
| Processor Type (CPU) | MediaTek | Unisoc | |
|---|---|---|---|
| Processor Number | MTK6762D | T612 | |
| Clock Speed | 1.8 GHz | 1.82 GHz | Realme C31 has higher clock speed than Alcatel 1S (2021). |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | IMG GE8320 | ARM Mali-G57 |
| MEMORY | Alcatel 1S (2021) | Realme C31 |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 4 GB + up to 7 GB virtual extension | Realme C31 has more RAM than Alcatel 1S (2021). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Realme C31 has more internal memory than Alcatel 1S (2021). |
| User Memory | 17 GB | - | |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 512 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Alcatel 1S (2021) | Realme C31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | 1/3.06" | - | |
| Lens Aperture | F/2.0 | F/2.2 | Alcatel 1S (2021) has better lens aperture than Alcatel 1S (2021). |
| Lens Construction | 5-element | 5-element | |
| Field of View (FoV) | 77.1 degree(s) | - | |
| Pixel Size | 1.12 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | HDR | |
| Camera Modes | Panorama, Pro mode, Best Shot, Bokeh Mode, Light Trace | Burst mode, Panorama, Time-lapse mode, Pro mode, Portrait, Filter mode, Macro mode, Night Pro | |
| Face Recognition (Face ID) | Face tracking | - | Alcatel 1S (2021) has face detection. |
| Light Source | Single tone LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), EIS video stabilisation, AI scene detection, AI Composition, AI Filter, Smart Album | AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/5" | - | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.4 | Both phones have the same second camera lens aperture. |
| Lens Element Qty (2nd Camera) | 3-element | - | |
| Field of View (2nd Camera) | 87.3 degree(s) | - | |
| Pixel Size (2nd Camera) | 1.12 μm | - | |
| Camera Functions (2nd Camera) | Depth camera | Macro camera | |
| Camera Features (2nd Camera) | 3-piece lens | 4cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 0.3 Megapixel | Alcatel 1S (2021) has higher resolution third camera than Realme C31. |
|---|---|---|---|
| Sensor Size (3rd Camera) | 1/5" | - | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.8 | Alcatel 1S (2021) has better third camera lens aperture than Alcatel 1S (2021). |
| Lens Element Qty (3rd Camera) | 3-element | - | |
| Field of View (3rd Camera) | 84 degree(s) | - | |
| Pixel Size (3rd Camera) | 1.65 μm | - | |
| Camera Functions (3rd Camera) | Macro camera | B&W lens |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Sensor Size (Front) | 1/5" | - | |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | - | 3-element | |
| Field of View (Front) | 76 degree(s) | - | |
| Pixel Size (Front) | 1.12 μm | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | Face Beautification | HDR | |
| Camera Modes (Front) | Night mode, Bokeh Mode | Beauty mode, Filter mode | |
| Face Recognition (Face ID) | Face tracking | - | Alcatel 1S (2021) has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Front) | - | AI Selfie |
| BATTERY AND CHARGING | Alcatel 1S (2021) | Realme C31 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 5000 mAh | Realme C31 has larger battery capacity than Alcatel 1S (2021). |
|---|---|---|---|
| Recharge Time (Charging Time) | 150 min | - | |
| Standby Time | 512 hours | - | |
| Talk Time | 1920 minutes | - | |
| Run Time Details | Standby (2G): up to 512 hrs Standby (3G): up to 488 hrs Standby (4G): up to 392 hrs Talk (4G): up to 1200 min Talk (2G): up to 1920 min |
- |
| CELLULAR | Alcatel 1S (2021) | Realme C31 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 11 | Android 11 | |
| User Interface | - | Realme UI (R Edition) | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, BeiDou, Galileo |
| COMMUNICATIONS | Alcatel 1S (2021) | Realme C31 |
|---|
| Data Transmission | GPRS, EDGE, HSPA+, LTE | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 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 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 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 | 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 | 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 5.0 | Bluetooth 5.0 |
| MEDIA | Alcatel 1S (2021) | Realme C31 |
|---|
| Supported Digital Audio Standards | AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AWB, Vorbis | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.263, HEVC, VP8, VP9, H.265, H.264 AVC | - |
| FEATURES | Alcatel 1S (2021) | Realme C31 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, digital compass, light sensor | Accelerometer, proximity sensor, magnetometer, gyro sensor, light sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (side) | |
| Security Technology | Face Key | - | |
| Additional Phone Features | Multitasking, HD Voice, dual microphones with noise cancellation, Google Lens, Google Assistant Button | MIMO technology, Ultra Power Saving Mode, Fast Charging |
| OTHERS | Alcatel 1S (2021) | Realme C31 |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool, LCD sticker | SIM card removal tool, 10W charger, micro-USB cable | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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