Samsung Galaxy A51 5G vs Samsung Galaxy S21 Ultra Specs Comparison
Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.
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Samsung Galaxy A51 5G | Samsung Galaxy S21 Ultra |
Released
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Apr 29, 2020
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Released
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Jan 29, 2021
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6.5-inch · 2400x1080px
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6.8-inch · 3200x1440px
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Quad camera
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Quad camera
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6GB · 128GB
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12GB · 128GB
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4500 mAh
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5000 mAh
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Check prices | Check prices |
Design
Dimensions | |
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6.26 x 2.90 x 0.34 inches 158.9 x 73.6 x 8.7 mm |
6.50 x 2.98 x 0.35 inches (~0.37 inches with camera bump) 165.1 x 75.6 x 8.9 mm (~9.4 mm with camera bump) |
Weight | |
6.60 oz (187.0 g) | 8.04 oz (229.0 g) |
Materials | |
Back: Plastic Frame: Aluminum | Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum |
Resistance | |
Water, Dust; IP68 | |
Biometrics | |
2D Face unlock, Optical in-screen fingerprint | 2D Face unlock, Ultrasonic in-screen fingerprint |
Keys | |
Right: Volume control, Lock/Unlock key | Right: Volume control, Lock/Unlock key |
Colors | |
Prism cube black | Phantom black, Silver |
Display
Size | |
---|---|
6.5-inch | 6.8-inch |
Resolution | |
2400x1080px, 20:9 ratio, 405 PPI | 3200x1440px, 20:9 ratio, 516 PPI |
Technology | |
Super AMOLED | Dynamic AMOLED |
Refresh rate | |
60Hz | 120Hz (adaptable) |
Screen-to-body | |
87.37 % | 89.33 % |
Peak brightness | |
1500 cd/m2 (nit) | |
Features | |
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor | HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor |
Hardware
System chip | |
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Samsung Exynos 980 (8 nm) | Qualcomm Snapdragon 888 SM8350 (5 nm) |
Processor | |
Octa-core 2x 2.2GHz Cortex-A77 + 6x 1.8GHz Cortex-A55 |
Octa-core 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680 |
GPU | |
Mali-G76 MP5 | Adreno 660 |
RAM | |
6GB (LPDDR4) | 12GB (LPDDR5) |
Internal storage | |
128GB, available to use: 105.3 GB | 128GB (UFS 3.1) |
Storage expansion | |
microSDXC up to 1000 GB | not expandable |
OS | |
Android (11, 10), Samsung One UI | Android (14, 13, 12, 11), One UI |
Battery
Capacity | |
---|---|
4500 mAh | 5000 mAh |
Type | |
Li - Polymer | Li - Polymer |
Charging | |
Fast charging | Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging |
Charge speed | |
Wired: 25.0W | Wired: 25.0W Wireless: 15.0W |
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
6h 15min
Browsing
14h 43min
Video
8h 52min
Gaming
8h 40min
Camera
Rear | |
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Quad camera | Quad camera |
Main camera | |
48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm | 108 MP (OIS, Laser and PDAF) Aperture size: F1.8 Focal length: 24 mm Sensor size: 1/1.33" Pixel size: 0.8 μm |
Second camera | |
12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm |
12 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm |
Third camera | |
5 MP (Macro) Aperture size: F2.4 Focal Length: 40 mm |
10 MP (Telephoto, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm |
Fourth camera | |
5 MP (Depth information) Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm |
10 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm |
Flash | |
LED | LED |
Video recording | |
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps) Hyperlapse, EIS | 7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) OIS, HDR, Hyperlapse, Video light, EIS |
Front | |
32 MP (HDR), Video capture: 1920x1080 (Full HD) | 40 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps) |
Connectivity & Features
Bluetooth | |
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5.0 | 5.1 |
WLAN | |
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot | 802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band MIMO, Wi-Fi Direct, Hotspot |
USB | |
Type-C, USB 2.0 | Type-C, USB 3.2 |
Hearing aid compatible | |
M3/T3 | M3/T3 |
Location | |
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning | GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning |
Sensors | |
Accelerometer, Gyroscope, Compass, Hall (for flip covers) | Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer |
Other | |
NFC, ANT+ | NFC, ANT+ |
Multimedia
Headphones | |
---|---|
3.5mm jack | No 3.5mm jack |
Speakers | |
Earpiece, Loudspeaker | Earpiece, Multiple speakers |
Features | |
Dolby Atmos | 32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus |
Screen mirroring | |
Wireless screen share | Wireless screen share |
Radio | |
FM | FM, Stereo, RDS |
Additional microphone(s) | |
Noise cancellation | Noise cancellation, Video recording |
Cellular
5G | |
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Bands n41, n71, SA, NSA | Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave |
4G (FDD) | |
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600) | 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) |
4G (TDD) | |
Bands 38(2600), 39(1900+), 40(2300), 41(2600+) | Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600) |
3G | |
Bands 1(2100), 2(1900), 4(1700/2100), 5(850) | Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) |
Data Speed | |
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s | LTE-A Pro Cat 20 (2000/150 Mbit/s) |
SIM type | |
Nano SIM | |
HD Voice | |
Yes |
Regulatory Approval
FCC approval | |
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Date approved: Jul 15, 2020 FCC ID value: A3LSMA516U | Date approved: Dec 22, 2020 FCC ID value: A3LSMG998U |
Measured SAR | |
Head: 1.18 W/kg Body: 1.20 W/kg Simultaneous Transmission: 3.25 W/kg Wireless Router: 1.37 W/kg |
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
MSRP | |
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$ 500 | $ 1200 / € 1399 |
In The Box | |
A to C USB Cable, Wall Adapter, SIM Pin/Ejector, Quick Start Guide, Terms & Conditions | C to C Data Cable, Ejection Pin |
Availability
Officially announced | |
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Apr 08, 2020 | Jan 14, 2021 |
Alternative variants
with 8GB RAM
RAM | 8GB |
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with 256GB storage
Internal storage | 256GB |
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Colors | Phantom black |
MSRP | $ 1250 |
for Europe
Colors | Prism cube black, Prism cube white |
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5G | Bands n41, n78, SA, NSA |
4G (FDD) | Bands 1(2100), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 20(800 DD), 28(700 APT) |
4G (TDD) | Bands 38(2600), 40(2300), 41(2600+) |
3G | Bands 5(850), 8(900), 2(1900), 1(2100) |
Dual SIM | Yes |
SIM type | Nano SIM |
with 512GB storage
RAM | 16GB |
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Internal storage | 512GB |
Colors | Phantom black |
MSRP | $ 1380 |
for Verizon
System chip | Qualcomm Snapdragon 765G SM7250-AB (7 nm) |
---|---|
Processor |
Octa-core 2400 MHz Kryo 475 |
GPU | Adreno 620 |
Colors | Prism bricks blue |
5G | Bands n260, n261, mmWave |
4G (FDD) | Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3) |
3G | Bands 5(850), 8(900), 2(1900), 1(2100) |
FCC approval |
Date approved: Jul 20, 2020 FCC ID value: A3LSMA516V |
Measured SAR |
Head: 0.32 W/kg Body: 1.32 W/kg Simultaneous Transmission: 3.01 W/kg Wireless Router: 1.37 W/kg Phablet: 3.91 W/kg |
MSRP | $ 550 |
for Europe
System chip | Samsung Exynos 2100 (5 nm) |
---|---|
Processor |
Octa-core 1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55 |
GPU | Mali G78 MP14 |
Weight | 8.01 oz (227.0 g) |
5G | Bands SA, NSA, Sub-6 |
FCC approval |
Date approved: Dec 22, 2020 FCC ID value: A3LSMG998B |
Measured SAR |
Head: 0.16 W/kg Body: 0.72 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.34 W/kg Phablet: 3.86 W/kg |
Links
Full specifications | |
---|---|
Samsung Galaxy A51 5G Specs | Samsung Galaxy S21 Ultra Specs |
PhoneArena Review | |
Samsung Galaxy S21 Ultra Review | |
User Reviews | |
Samsung Galaxy A51 5G User Reviews | Samsung Galaxy S21 Ultra User Reviews |