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altek Leo vs Samsung Galaxy S4 Zoom vs Samsung Galaxy S21 Ultra

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

Comparison mode:

Display

Size:

3.2 inches
4.3 inches
6.8 inches

Resolution:

800 x 480 pixels, 292 PPI
960 x 540 pixels, 256 PPI
3200 x 1440 pixels, 20:9 ratio, 516 PPI

Technology:

TFT
Super AMOLED
Dynamic AMOLED

Refresh rate:

120Hz (adaptable)

Screen-to-body:

46.35 %
63.97 %
89.33 %

Colors:

16 777 216
16 777 216

Peak brightness:

1500 cd/m2 (nit)

Touchscreen:

Capacitive, Multi-touch
Capacitive, Multi-touch

Features:

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

Hardware

System chip:

Samsung Exynos 4 Dual 4212
Qualcomm Snapdragon 888

Processor:

Dual-core, 1500 MHz, ARM Cortex-A9
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Mali-400 MP4
Adreno 660

RAM:

1.5GB
12GB LPDDR5

Internal storage:

8GB, available to use: 5 GB
128GB (UFS 3.1), not expandable

Storage expansion:

microSDHC up to 32 GB
microSDXC up to 64 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (2.1)
Android (4.4.2, 4.2), Samsung TouchWiz UI
Android (11), Samsung One UI

Battery

Capacity:

1020 mAh
2330 mAh
5000 mAh

Type:

Li - Ion, User replaceable
Li - Ion, User replaceable
Li - Polymer, Not user replaceable

Charging:

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

Max charge speed:

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Single camera
Single camera
Quad camera

Main camera:

14 MP (Autofocus, AF Assist Beam, CCD image sensor)
16 MP (OIS, Autofocus, CMOS image sensor, BSI sensor)
108 MP (OIS, Laser and PDAF)

Specifications:

Optical zoom: 3.0x
Optical zoom: 10.0x; Aperture size: F3.1/F17.8; Focal length: 24-240 mm; Sensor size: 1/2.3"; Pixel size: 1.3 μm
Aperture size: F1.8; Focal length: 24 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm

Second camera:

10 MP (Telephoto, OIS, PDAF)

Specifications:

Optical zoom: 3.0x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Third camera:

12 MP (Ultra-wide, PDAF)

Specifications:

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

Fourth camera:

10 MP (Periscope, OIS, PDAF)

Specifications:

Optical zoom: 10.0x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Video recording:

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

Features:

OIS, Continuous autofocus, Video light
OIS, HDR, Hyperlapse, Video light, EIS

Front:

1.9 MP
40 MP (PDAF, HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

4.41 x 2.21 x 0.61 inches (111.9 x 56.1 x 15.5 mm)
4.94 x 2.50 x 0.61 inches (125.5 x 63.5 x 15.4 mm)
6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)

Weight:

4.94 oz (140.0 g)
7.34 oz (208.0 g)
8.04 oz (229.0 g)

Materials:

Back: Glass (Corning Gorilla Glass Victus); Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Left: Volume control, Camera shutter, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black, White
Phantom black, Silver

Cellular

5G:

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

LTE (FDD):

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)

LTE (TDD):

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

UMTS:

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

Data Speed:

HSDPA 7.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE Cat 3 (100/50 Mbit/s), HSDPA+ (4G) 21.1 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

SIM type:

Micro SIM
Nano SIM

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

Album art cover, Background playback
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

DLNA, MHL
Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

2.1, EDR
4.0
5.1

Wi-Fi:

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

USB:

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

Features:

Charging
Mass storage device, Charging, Video out
Charging, Headphones port, OTG, Video out

HDMI:

Yes

Location:

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

Sensors:

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

Other:

Computer sync, OTA sync
Tethering, Computer sync, OTA sync
NFC, ANT+

Hearing aid compatible:

M3, T3

Phone features

Notifications:

Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone

Other features:

Voice recording
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval:

Date approved:

Nov 27, 2013
Dec 22, 2020

FCC ID value:

A3LSMC101
A3LSMG998U

Measured SAR:

Head:

0.27 W/kg
0.77 W/kg

Body:

0.35 W/kg
1.02 W/kg

Simultaneous Transmission:

1.05 W/kg
1.59 W/kg

Wireless Router:

0.49 W/kg
1.16 W/kg

Phablet:

3.15 W/kg

Buyers information

Price:

$ 1200

In The Box:

C to C Data Cable, Ejection Pin

Availability

Officially announced:

Jun 12, 2013
Jan 14, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless