Detailed comparison and review of Alcatel Flash and Samsung Galaxy A21s. 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 | Alcatel Flash | Samsung Galaxy A21s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A217F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 152.6 mm | 163.7 mm | Samsung Galaxy A21s has greater height than Alcatel Flash. |
| Width | 75.4 mm | 75.3 mm | Alcatel Flash has greater width than Samsung Galaxy A21s. |
| Depth | 8.7 mm | 8.9 mm | Alcatel Flash is narrower than Alcatel Flash. |
| Weight | 155 g | 192 g | Alcatel Flash is lighter than Alcatel Flash. |
| Body Colour | Titanium grey | White | Blue | Black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.724 W/kg (body), 0.284 W/kg (head) | 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Alcatel Flash | Samsung Galaxy A21s |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | PLS TFT | |
| Screen Size (Display Size) | 5.5" | 6.5" | Samsung Galaxy A21s has larger screen size than Alcatel Flash. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | Alcatel Flash has better screen resolution than Samsung Galaxy A21s. |
| Display Format | Full HD | HD+ | |
| Pixel Density | 401 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | Full Lamination | Infinity O display | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Dragontrail (scratch resistant glass) | - |
| PROCESSOR | Alcatel Flash | Samsung Galaxy A21s |
|---|
| Processor Type (CPU) | MediaTek Helio X20 | - | |
|---|---|---|---|
| Processor Number | MT6797 | - | |
| Clock Speed | 1.3 GHz | 2 GHz | Samsung Galaxy A21s has higher clock speed than Alcatel Flash. |
| Processor Core Qty | 10-core | 8-core | Alcatel Flash has higher processor core quantity than Samsung Galaxy A21s. |
| Graphics System (GPU) | Mali T880 MP4 | - |
| MEMORY | Alcatel Flash | Samsung Galaxy A21s |
|---|
| RAM | 3 GB | 3 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| User Memory | - | 19.5 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Alcatel Flash | Samsung Galaxy A21s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 48 Megapixel | Samsung Galaxy A21s has better camera resolution than Alcatel Flash. |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | - | 80 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 8x | |
| Camera Modes | Panorama, tap to focus, Super Fine mode, Manual Focus Mode | Live Focus mode | |
| Face Recognition (Face ID) | Face detection | - | Alcatel Flash has face detection. |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Closed loop processing, geotagging, Dual-tone Flash | Live Focus |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 13 Megapixel | 8 Megapixel | Alcatel Flash has better second camera resolution than Samsung Galaxy A21s. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.0 | F/2.2 | Alcatel Flash has better second camera lens aperture than Alcatel Flash. |
| Field of View (2nd Camera) | - | 123 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | 4cm macro photography |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 13 Megapixel | Samsung Galaxy A21s has better front camera resolution than Alcatel Flash. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Alcatel Flash has better front lens aperture than Alcatel Flash. |
| Lens Element Qty (Front) | 6-element | - | |
| Focus Adjustment | Focus free | Focus free | |
| Camera Modes (Front) | Super Selfie Mode | - | |
| Light Source (Front) | Dual LED flash | - | |
| Camera Features (Front) | Phase Detect Auto-Focus (PDAF), Closed loop processing, Dual-tone Flash | - |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | 5 Megapixel | - |
|---|
| BATTERY AND CHARGING | Alcatel Flash | Samsung Galaxy A21s |
|---|
| Battery Capacity (Battery Size) | 3100 mAh | 5000 mAh | Samsung Galaxy A21s has larger battery capacity than Alcatel Flash. |
|---|---|---|---|
| Standby Time | 466 hours | - | |
| Talk Time | 1200 minutes | 3240 minutes | Samsung Galaxy A21s has longer battery life when making calls than Alcatel Flash. |
| Run Time Details | Talk (3G): up to 1200 min Standby (3G): up to 466 hrs |
Active online usage (4G): up to 23 hrs Active online usage (Wi-Fi): up to 23 hrs Playback (video): up to 21 hrs Playback (audio): up to 109 hrs Talk (4G): up to 3240 min |
|
| Battery Technology | Lithium Ion | Lithium Ion |
| CELLULAR | Alcatel Flash | Samsung Galaxy A21s |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0 (Marshmallow) | - | |
| User Interface | - | One UI | |
| Navigation | A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Alcatel Flash | Samsung Galaxy A21s |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, 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 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, 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, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, 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 | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | A2DP | - | |
| NFC | - | Yes | Samsung Galaxy A21s has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Alcatel Flash | Samsung Galaxy A21s |
|---|
| Supported Digital Audio Standards | AAC, AMR, MP3, AAC + | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, H.264 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | - | Dolby Atmos sound technology |
| FEATURES | Alcatel Flash | Samsung Galaxy A21s |
|---|
| 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 | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor | Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | Active noise-cancellation | Samsung KNOX, Virtual Light Sensing |
| OTHERS | Alcatel Flash | Samsung Galaxy A21s |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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