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Alcatel 3X (2019) vs Samsung Galaxy S21 vs Samsung Galaxy A52

Compare phone and tablet specifications of up to three devices at once.

Comparison mode:

Display

Size:

6.5 inches
6.2 inches
6.5 inches

Resolution:

1600 x 720 pixels, 20:9 ratio, 269 PPI
2400 x 1080 pixels, 20:9 ratio, 424 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

Dynamic AMOLED
Super AMOLED

Refresh rate:

120Hz (adaptive)
90Hz

Screen-to-body:

82.25 %
86.06 %
84.79 %

Peak brightness:

1300 cd/m2 (nit)

Features:

Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip:

MediaTek MT6763V/V
Qualcomm Snapdragon 888
Qualcomm Snapdragon 720G SM7125

Processor:

Octa-core, 2000 MHz, 64-bit
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm
Octa-core, 2300 MHz, Kryo 465, 64-bit, 8 nm

GPU:

ARM Mali G71 MP2
Adreno 660
Adreno 618

RAM:

4GB
8GB LPDDR5
6GB LPDDR4

Internal storage:

64GB, available to use: 55 GB
128GB (UFS 3.0), not expandable
128GB

Storage expansion:

microSDXC up to 128 GB
microSDXC up to 1024 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (9.0 Pie)
Android (12, 11), Samsung One UI
Android (11), Samsung One UI

Battery

Capacity:

4000 mAh
4000 mAh
4500 mAh

Type:

Not user replaceable
Li - Polymer, Not user replaceable
Not user replaceable

Charging:

Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Qualcomm Quick Charge 2.0

Max charge speed:

Wired: 25.0W; Wireless: 15.0W
Wired: 25.0W

Camera

Rear:

Triple camera
Triple camera
Quad camera

Main camera:

16 MP (PDAF)
12 MP (OIS, PDAF)
64 MP (OIS, Autofocus)

Specifications:

Aperture size: F1.8; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 1.12 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 1.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)
64 MP (Telephoto, OIS, PDAF)
12 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 17 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F2.2; Pixel size: 1.12 μm

Third camera:

5 MP (Depth information)
12 MP (Ultra-wide, Autofocus)
5 MP (Macro)

Specifications:

Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F2.4; Pixel size: 1.12 μm

Fourth camera:

5 MP (Depth information)

Specifications:

Aperture size: F2.4; Pixel size: 1.12 μm

Video recording:

1920x1080 (Full HD) (30 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps)

Features:

OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS
Continuous autofocus, Picture-taking during video recording

Front:

8 MP
10 MP (PDAF, HDR)
32 MP

Video capture:

1280x720 (HD) (30 fps)
3840x2160 (4K UHD) (60 fps)
3840x2160 (4K UHD) (30 fps)

Design

Dimensions:

6.49 x 2.98 x 0.33 inches (164.8 x 75.8 x 8.39 mm)
5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)
6.30 x 2.96 x 0.33 inches (159.9 x 75.1 x 8.4 mm)

Weight:

6.28 oz (178.0 g)
6.03 oz (171.0 g)
6.67 oz (189.0 g)

Materials:

Back: Plastic; Frame: Aluminum
Back: Plastic

Resistance:

Water, Dust; IP68
Water, Dust; IP67

Biometrics:

Fingerprint (touch)
2D Face unlock, Ultrasonic in-screen fingerprint
2D Face unlock, In-screen fingerprint

Keys:

Left: Other; Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Jewelry Black
Phantom pink, Violet, Gray, White

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)

LTE (TDD):

Bands 38(2600), 40(2300)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
Bands 38(2600), 40(2300), 41(2600+)

UMTS:

Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)

Data Speed:

LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 11 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Yes
Shared with microSD

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes

Multimedia

Headphones:

3.5mm jack
No 3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features:

32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Dolby Atmos

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation
for Noise cancellation, Video recording
for Noise cancellation

Connectivity & Features

Bluetooth:

4.2
5.0
5.0

Wi-Fi:

802.11 b, g, n; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.2
Type-C (reversible), USB 2.0

Features:

Charging
Charging, Headphones port, OTG, Video out
Charging, Headphones port, OTG

Location:

GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other:

NFC, ANT+
NFC

Hearing aid compatible:

M3
M3, T3
M3, T3

Regulatory Approval

FCC approval:

Date approved:

Dec 08, 2020

FCC ID value:

A3LSMG991U

Measured SAR:

Head:

0.36 W/kg

Body:

1.08 W/kg

Simultaneous Transmission:

3.96 W/kg

Wireless Router:

1.09 W/kg

Phablet:

2.49 W/kg

Buyers information

Price:

$ 800
€ 429

In The Box:

C to C Data Cable, Ejection Pin

Availability

Officially announced:

Sep 05, 2019
Jan 14, 2021
Mar 17, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless