In depth comparison and review of Alcatel Idol 4S and Samsung Galaxy A51. 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 A51 |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | - | SM-A515F/DSN | |
Form Factor | Touch | Touch | |
Height | 153.9 mm | 158.5 mm | Samsung Galaxy A51 has greater height than Alcatel Idol 4S. |
Width | 75.4 mm | 73.6 mm | Alcatel Idol 4S has greater width than Samsung Galaxy A51. |
Depth | 7 mm | 7.9 mm | Alcatel Idol 4S is narrower than Alcatel Idol 4S. |
Weight | 149 g | 172 g | Alcatel Idol 4S is lighter than Alcatel Idol 4S. |
Body Colour | Dark grey | Silver | Prism crush black | Haze crush silver | Prism crush blue | Prism crush white | |
Waterproof (Water-resistant) | - | - | |
SAR Value | - | 0.369 W/kg (head), 1.59 W/kg (body), 2.93 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 |
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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 A51 |
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Display Type | OLED display | OLED display | |
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Display Technology | AMOLED | Super AMOLED | |
Screen Size (Display Size) | 5.5" | 6.5" | Samsung Galaxy A51 has larger screen size than Alcatel Idol 4S. |
Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 2400 x 1080 pixels | Alcatel Idol 4S has better screen resolution than Samsung Galaxy A51. |
Display Format | QHD | Full HD+ | |
Pixel Density | 534 ppi | 408 ppi | Alcatel Idol 4S has better pixel density than Samsung Galaxy A51. |
Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
Display Features | - | Edge-to-Edge screen, 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 A51 |
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Processor Type (CPU) | Qualcomm Snapdragon 652 | Samsung Exynos 9611 | |
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Processor Number | MSM8976 | - | |
Clock Speed | 1.8 GHz | 2.3 GHz | Samsung Galaxy A51 has higher clock speed than Alcatel Idol 4S. |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
64-bit Architecture | - | Yes | Samsung Galaxy A51 has 64-bit architecture. |
Graphics System (GPU) | Qualcomm ADRENO 510 | - |
MEMORY | Alcatel Idol 4S | Samsung Galaxy A51 |
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RAM | 3 GB | 4 GB | Samsung Galaxy A51 has more RAM than Alcatel Idol 4S. |
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Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | Samsung Galaxy A51 has more internal memory than Alcatel Idol 4S. |
User Memory | - | 107 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 A51 |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 4 | |
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Sensor Resolution | 16 Megapixel | 48 Megapixel | Samsung Galaxy A51 has better camera resolution than Alcatel Idol 4S. |
Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
Focus Adjustment | Automatic | Automatic | |
Digital Zoom | - | 8x | |
HDR Mode | Auto HDR mode | - | |
Camera Modes | Panorama | Slow motion mode, Live Focus mode | |
Light Source | Dual LED flash | LED flash | |
Video Resolutions | 3840 x 2160 (4K) | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | |
Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
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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 |
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Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
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Lens Aperture (3rd Camera) | - | F/2.4 | |
Camera Functions (3rd Camera) | - | Macro camera |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | - | 5 Megapixel | |
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Lens Type (4th Camera) | - | Telephoto lens | |
Lens Aperture (4th Camera) | - | F/2.2 | |
Camera Functions (4th Camera) | - | Depth camera |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 8 Megapixel | 32 Megapixel | Samsung Galaxy A51 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 A51 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 A51 |
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Battery Capacity (Battery Size) | 3000 mAh | 4000 mAh | Samsung Galaxy A51 has larger battery capacity than Alcatel Idol 4S. |
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Recharge Time (Charging Time) | 100 min | - | |
Standby Time | 420 hours | - | |
Talk Time | 780 minutes | 1920 minutes | Samsung Galaxy A51 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 (LTE): up to 15 hrs Active online usage (Wi-Fi): up to 16 hrs Playback (video): up to 20 hrs Playback (audio): up to 87 hrs Talk (4G): up to 1920 min |
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Battery Technology | Lithium Ion | Lithium Ion |
CELLULAR | Alcatel Idol 4S | Samsung Galaxy A51 |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 6.0.1 (Marshmallow) | Android 10 | |
User Interface | - | One UI | |
Intelligent Assistant | - | Bixby | |
Navigation | GPS, A-GPS | GPS, GLONASS, BeiDou, Galileo |
COMMUNICATIONS | Alcatel Idol 4S | Samsung Galaxy A51 |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
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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 | |
3G UMTS Frequency | - | 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 13, Band 17, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41, Band 66 | |
4G LTE Frequency | - | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, ANT+ | |
Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 LE | |
Bluetooth Profiles | - | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP | |
NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | Alcatel Idol 4S | Samsung Galaxy A51 |
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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 | |
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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 | - |
FEATURES | Alcatel Idol 4S | Samsung Galaxy A51 |
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Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
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Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | |
Security Devices | - | Fingerprint reader (under display) | |
Additional Phone Features | Radio Data Service (RDS), HD Voice, Dual noise reduction microphones | Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines |
OTHERS | Alcatel Idol 4S | Samsung Galaxy A51 |
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Included Accessories | Stereo headset, USB cable, power adapter, SIM card removal tool, Virtual Reality Googles | Power adapter |
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