Samsung Galaxy A31 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 A31 | Samsung Galaxy S21 Ultra |
Released
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Apr 27, 2020
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Released
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Jan 29, 2021
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6.4-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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4GB · 64GB
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12GB · 128GB
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5000 mAh
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5000 mAh
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Check prices |
Availability
Officially announced | |
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Mar 24, 2020 | Jan 14, 2021 |
MSRP | |
€ 300 | $ 1200 / € 1399 |
Design
Dimensions | |
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6.27 x 2.88 x 0.34 inches 159.3 x 73.1 x 8.6 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 | |
6.53 oz (185.0 g) | 8.04 oz (229.0 g) |
Materials | |
Back: Plastic | Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum |
Resistance | |
Water, Dust; IP68 | |
Biometrics | |
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 Crush black, Prism Crush blue, Prism Crush red, Prism Crush white | Phantom black, Silver |
Display
Size | |
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6.4-inch, 84.88% screen-to-body | 6.8-inch, 89.33% screen-to-body |
Type | |
Super AMOLED, 60Hz | Dynamic AMOLED, 120Hz, HDR, 1500 nits |
Resolution | |
2400x1080px, 20:9 ratio, 411 PPI | 3200x1440px, 20:9 ratio, 516 PPI |
Protection | |
Corning Gorilla Glass Victus |
Hardware
System chip | |
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MediaTek Helio P65 MT6768 (12 nm) | Snapdragon 888 SM8350 (5 nm) |
Processor | |
Octa-core 2x2.0GHz Cortex-A75 6x2.0GHz Cortex-A55 |
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680 |
GPU | |
Mali-G52 MC2 | Adreno 660 |
Memory | |
4GB (LPDDR4)/64GB (eMMC 5.1) 6GB/128GB |
12GB (LPDDR5)/128GB (UFS 3.1) 12GB/256GB 16GB/512GB |
Storage expansion | |
microSDXC up to 512 GB | not expandable |
OS | |
Android (10) | Android (14, 13, 12, 11) |
Battery
Type | |
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5000 mAh, Li - Polymer | 5000 mAh, 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: 15.0W | 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 | |
8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" 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 | 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: F2.4 | 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 | |
1080p (30 fps) | 8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Video light, EIS |
Front | |
20 MP Video capture: 1080p |
40 MP (PDAF, HDR) Video capture: 4K UHD (60 fps) |
Connectivity & Features
Bluetooth | |
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5.0 | 5.1 |
WLAN | |
a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac | a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax |
USB | |
Type-C, USB 2.0 | Type-C, USB 3.2 |
Sensors | |
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor | Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor |
Hearing aid compatible | |
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 |
Other | |
NFC | NFC, ANT+ |
Multimedia
Headphones | |
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3.5mm jack | No 3.5mm jack |
Speakers | |
Earpiece, Loudspeaker | Earpiece, Multiple speakers |
Features | |
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus | |
Screen mirroring | |
Wireless screen share | |
Additional microphone(s) | |
Noise cancellation |
Cellular
5G | |
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Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave | |
4G (FDD) | |
Bands 1, 2, 3, 4, 5, 7, 8, 20 | Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30(2300 WCS), 66(AWS-3), 71(600) |
4G (TDD) | |
Bands 38, 40, 41 | Bands 38, 39, 40, 41, 46, 48 |
3G | |
Bands 1, 2, 5, 8 | Bands 1, 2, 4, 5, 8 |
Data Speed | |
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s | LTE-A Pro Cat 20 (2000/150 Mbit/s) |
Dual SIM | |
Yes | |
SIM type | |
Nano SIM | Nano SIM |
Regulatory Approval
FCC approval | |
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Date approved: Mar 08, 2020 FCC ID value: A3LSMA315GL | Date approved: Dec 22, 2020 FCC ID value: A3LSMG998U |
Measured SAR | |
Head: 0.53 W/kg Body: 0.56 W/kg Simultaneous Transmission: 1.42 W/kg Wireless Router: 0.65 W/kg Phablet: 0.89 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 |
Alternative variants
with 128GB storage
Memory | 6GB/128GB |
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with 256GB storage
Memory | 256GB |
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Colors | Phantom black |
MSRP | $ 1250 |
with 512GB storage
Memory | 16GB/512GB |
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Colors | Phantom black |
MSRP | $ 1380 |
for Europe
System chip | Samsung Exynos 2100 (5 nm) |
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Processor |
Octa-core 1x2.91GHz Cortex-X1 3x2.81GHz Cortex-A78 4x2.2GHz 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 | |
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Samsung Galaxy A31 Specs | Samsung Galaxy S21 Ultra Specs |
PhoneArena Review | |
Samsung Galaxy S21 Ultra Review | |
User Reviews | |
Samsung Galaxy S21 Ultra User Reviews |