In depth comparison and review of Alcatel Idol 4S and Samsung Galaxy A21s. 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 Idol 4S | Samsung Galaxy A21s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A217F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 153.9 mm | 163.7 mm | Samsung Galaxy A21s has greater height than Alcatel Idol 4S. |
| Width | 75.4 mm | 75.3 mm | Alcatel Idol 4S has greater width than Samsung Galaxy A21s. |
| Depth | 7 mm | 8.9 mm | Alcatel Idol 4S is narrower than Alcatel Idol 4S. |
| Weight | 149 g | 192 g | Alcatel Idol 4S is lighter than Alcatel Idol 4S. |
| Body Colour | Dark grey | White | Blue | Black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.544 W/kg (body), 0.422 W/kg (head), 2.21 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B 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 (SIM1 and SIM2/MicroSD slots) | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Alcatel Idol 4S | Samsung Galaxy A21s |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | PLS TFT | |
| Screen Size (Display Size) | 5.5" | 6.5" | Samsung Galaxy A21s has larger screen size than Alcatel Idol 4S. |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 1600 x 720 pixels | Alcatel Idol 4S has better screen resolution than Samsung Galaxy A21s. |
| Display Format | QHD | HD+ | |
| Pixel Density | 534 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | - | Infinity O display | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Dragontrail (scratch resistant glass), 2.5D Arc Glass | - |
| PROCESSOR | Alcatel Idol 4S | Samsung Galaxy A21s |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 652 | - | |
|---|---|---|---|
| Processor Number | MSM8976 | - | |
| Clock Speed | 1.8 GHz | 2 GHz | Samsung Galaxy A21s has higher clock speed than Alcatel Idol 4S. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 510 | - |
| MEMORY | Alcatel Idol 4S | 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 Idol 4S | Samsung Galaxy A21s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 48 Megapixel | Samsung Galaxy A21s has better camera resolution than Alcatel Idol 4S. |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
| Field of View (FoV) | - | 80 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 8x | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama | Live Focus mode | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 3840 x 2160 (4K) | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | 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) | 8 Megapixel | 13 Megapixel | Samsung Galaxy A21s has better front camera resolution than Alcatel Idol 4S. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.4 | F/2.2 | Samsung Galaxy A21s has better front lens aperture than Alcatel Idol 4S. |
| Focus Adjustment | - | Focus free | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - |
| BATTERY AND CHARGING | Alcatel Idol 4S | Samsung Galaxy A21s |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Samsung Galaxy A21s has larger battery capacity than Alcatel Idol 4S. |
|---|---|---|---|
| Recharge Time (Charging Time) | 100 min | - | |
| Standby Time | 420 hours | - | |
| Talk Time | 780 minutes | 3240 minutes | Samsung Galaxy A21s has longer battery life when making calls than Alcatel Idol 4S. |
| Run Time Details | Talk: up to 780 min Standby: up to 420 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 Idol 4S | 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 6.0.1 (Marshmallow) | - | |
| User Interface | - | One UI | |
| Navigation | GPS, A-GPS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Alcatel Idol 4S | 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 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 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 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 LE | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Alcatel Idol 4S | Samsung Galaxy A21s |
|---|
| Supported Digital Audio Standards | WAV, WMA, 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.265 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | Hi-Fi Sound support | Dolby Atmos sound technology |
| FEATURES | Alcatel Idol 4S | Samsung Galaxy A21s |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Additional Phone Features | Radio Data Service (RDS), HD Voice, Dual noise reduction microphones | Samsung KNOX, Virtual Light Sensing |
| OTHERS | Alcatel Idol 4S | Samsung Galaxy A21s |
|---|
| Included Accessories | Stereo headset, USB cable, power adapter, SIM card removal tool, Virtual Reality Googles | Power adapter |
|---|
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