Side by side comparison and review of Samsung Galaxy A21s and Ulefone Armor X7. 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 | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A217F/DSN | - | |
| Form Factor | Touch | Touch - Rugged | |
| Height | 163.7 mm | 150 mm | Samsung Galaxy A21s has greater height than Ulefone Armor X7. |
| Width | 75.3 mm | 78.9 mm | Ulefone Armor X7 has greater width than Samsung Galaxy A21s. |
| Depth | 8.9 mm | 14.6 mm | Samsung Galaxy A21s is narrower than Samsung Galaxy A21s. |
| Weight | 192 g | 234 g | Samsung Galaxy A21s is lighter than Samsung Galaxy A21s. |
| Body Colour | White | Blue | Black | Orange | |
| Body Material | - | Aluminium alloy, thermoplastic polyurethane (TPU) | |
| Protection | - | Dustproof, waterproof, splash-resistant | |
| Waterproof (Water-resistant) | - | Yes | Ulefone Armor X7 is waterproof. |
| IP rating | - | IEC 60529 IP68, IEC 60529 IP69K | |
| SAR Value | 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) | 0.793 W/kg (body), 0.8 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| 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 | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | PLS TFT | IPS | |
| Screen Size (Display Size) | 6.5" | 5" | Samsung Galaxy A21s has larger screen size than Ulefone Armor X7. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 1280 x 720 pixels | Samsung Galaxy A21s has better screen resolution than Ulefone Armor X7. |
| Display Format | HD+ | HD+ | |
| Pixel Density | - | 294 ppi | |
| Aspect Ratio | 20:9 | - | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | Infinity O display | - |
| PROCESSOR | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| Processor Type (CPU) | - | MediaTek Helio A20 | |
|---|---|---|---|
| Processor Number | - | MT6761 | |
| Clock Speed | 2 GHz | 1.8 GHz | Samsung Galaxy A21s has higher clock speed than Ulefone Armor X7. |
| Processor Core Qty | 8-core | Quad-core | Samsung Galaxy A21s has higher processor core quantity than Ulefone Armor X7. |
| Graphics System (GPU) | - | IMG GE8300 |
| MEMORY | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| RAM | 3 GB | 2 GB | Samsung Galaxy A21s has more RAM than Ulefone Armor X7. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 16 GB | Samsung Galaxy A21s has more internal memory than Ulefone Armor X7. |
| User Memory | 19.5 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSDXC - up to 128 GB |
| CAMERA | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 1 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 13 Megapixel | Samsung Galaxy A21s has better camera resolution than Ulefone Armor X7. |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/2.0 | F/2.2 | Samsung Galaxy A21s has better lens aperture than Samsung Galaxy A21s. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | 80 degree(s) | - | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 8x | - | |
| Camera Modes | Live Focus mode | Underwater mode | |
| Light Source | LED flash | Dual 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) | Live Focus | - |
| 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) | 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 | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 13 Megapixel | 5 Megapixel | Samsung Galaxy A21s has better front camera resolution than Ulefone Armor X7. |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | - | 4-element | |
| Focus Adjustment | Focus free | - |
| BATTERY AND CHARGING | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4000 mAh | Samsung Galaxy A21s has larger battery capacity than Ulefone Armor X7. |
|---|---|---|---|
| Standby Time | - | 430 hours | |
| Talk Time | 3240 minutes | 780 minutes | Samsung Galaxy A21s has longer battery life when making calls than Ulefone Armor X7. |
| Run Time Details | 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 |
Talk: up to 780 min Standby: up to 430 hrs Playback (Music): up to 26 hrs Playback (video): up to 9 hrs |
|
| Battery Technology | Lithium Ion | Lithium Ion |
| CELLULAR | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 10 | |
| User Interface | One UI | - | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, Galileo |
| COMMUNICATIONS | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-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 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 19, Band 20 | |
| 4G LTE Frequency | 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 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 upper, FDD 800 DD | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | AAC, AMR, MP3, FLAC | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | MPEG-4, 3GP | |
| Sound Enhancements | Dolby Atmos sound technology | - |
| FEATURES | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| 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, proximity sensor, gyro sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | Samsung KNOX, Virtual Light Sensing | Face Unlock, Glove mode, notification LED, customised button |
| OTHERS | Samsung Galaxy A21s | Ulefone Armor X7 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool, protective film, Sling, plastic spudger | |
|---|---|---|---|
| Compliant Standards | - | IEC 60529 IP68, MIL-STD 810G, IEC 60529 IP69K | |
| Max Depth of Water Resistance | - | 1.5 m | |
| Max Operating Temperature | - | 60 °C | |
| Min Operating Temperature | - | -20 °C |
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