Samsung Galaxy Watch Active 2 (40mm) vs Samsung Galaxy Watch Active 2 (44mm) vs Samsung Galaxy S21 Ultra

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

Comparison mode:

Display

Size:

1.2 inches
1.4 inches
6.8 inches

Resolution:

360 x 360 pixels, 424 PPI
360 x 360 pixels, 364 PPI
3200 x 1440 pixels, 20:9 ratio, 516 PPI

Technology:

Super AMOLED
Super AMOLED
Dynamic AMOLED

Refresh rate:

120Hz (adaptable)

Screen-to-body:

29.21 %
32.74 %
89.33 %

Peak brightness:

1500 cd/m2 (nit)

Features:

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

Hardware

System chip:

Samsung Exynos 9110
Samsung Exynos 9110
Qualcomm Snapdragon 888

Processor:

Dual-core, 1150 MHz, Arm Cortex-A53, 64-bit, 10 nm
Dual-core, 1150 MHz, Arm Cortex-A53, 64-bit, 10 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Mali-T720 MP1
Mali-T720 MP1
Adreno 660

RAM:

1.5GB
1.5GB
12GB LPDDR5

Internal storage:

4GB (eMMC), not expandable
4GB (eMMC), not expandable
128GB (UFS 3.1), not expandable

Device type:

Smartwatch
Smartwatch
Smartphone

OS:

Tizen (4.0)
Tizen (4.0)
Android (11), Samsung One UI

Compatible devices:

Samsung smartphone, Android smartphone (Android 5.0 and above with 1.5GB RAM and above), iPhone 5 and above or iOS 9.0 and above
Samsung smartphone, Android smartphone (Android 5.0 and above with 1.5GB RAM and above), iPhone 5 and above or iOS 9.0 and above

Battery

Capacity:

247 mAh
340 mAh
5000 mAh

Type:

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

Charging:

Magnetic charging
Magnetic 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:

Quad camera

Main camera:

108 MP (OIS, Laser and PDAF)

Specifications:

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:

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

Features:

OIS, HDR, Hyperlapse, Video light, EIS

Front:

40 MP (PDAF, HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

1.57 x 1.57 x 0.43 inches (40 x 40 x 10.9 mm)
1.73 x 1.73 x 0.43 inches (44 x 44 x 10.9 mm)
6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)

Weight:

1.31 oz (37.0 g)
1.31 oz (42.0 g)
8.04 oz (229.0 g)

Materials:

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

Materials & Colors:

Stainless steel: Black, Gold, Silver
Stainless steel: Black, Gold, Silver

Resistance:

Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified
Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified
Water, Dust; IP68

Biometrics:

2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Phantom black, Silver

Cellular

5G:

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

LTE (FDD):

Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3)
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3)
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 5(850), 4(1700/2100), 2(1900)
Bands 5(850), 4(1700/2100), 2(1900)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)

Data Speed:

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

SIM type:

eSIM
eSIM
Nano SIM

Multimedia

Headphones:

No 3.5mm jack

Speakers:

Loudspeaker
Earpiece, Multiple speakers

Features:

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

Screen mirroring:

Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

5.0
5.0
5.1

Wi-Fi:

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

USB:

Type-C (reversible), USB 3.2

Features:

Charging, Headphones port, OTG, Video out

Location:

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

Sensors:

Accelerometer, Gyroscope, Heart rate, Barometer, ECG
Accelerometer, Gyroscope, Heart rate, Barometer, ECG
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

NFC
NFC
NFC, ANT+

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Dec 22, 2020

FCC ID value:

A3LSMG998U

Measured SAR:

Head:

0.77 W/kg

Body:

1.02 W/kg

Simultaneous Transmission:

1.59 W/kg

Wireless Router:

1.16 W/kg

Phablet:

3.15 W/kg

Buyers information

Price:

$ 430
$ 450
$ 1200

In The Box:

Quick Start Guide,User Manual, Wireless Charging Pad
Quick Start Guide,User Manual, Wireless Charging Pad
C to C Data Cable, Ejection Pin

Availability

Officially announced:

Aug 05, 2019
Aug 05, 2019
Jan 14, 2021
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