Compare Devices
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Brand | samsung | sony | xiaomi |
Model | samsung galaxy a31 | sony xperia xz2 compact | xiaomi Watch s4 sport |
Announced | 2020 March 24 | 2018 February. Released 2018 April | 2024 July 19 |
Status | Available. Released 2020 April 27 | discontinued | Available. Released 2024 July 19 |
Device Body | glass front ( gorilla glass 5 ) | plastic back | aluminum frame | sapphire crystal front | titanium alloy case | sapphire crystal back | |
Dimensions | 159.3 x 73.1 x 8.6 mm ( 6.27 x 2.88 x 0.34 in ) | 135 x 65 x 12.1 mm ( 5.31 x 2.56 x 0.48 in ) | 46.9 x 46.9 x 12.6 mm ( 1.85 x 1.85 x 0.50 in ) |
Weight in gram | 185 | 168 | 49 |
SIM card | single SIM ( Nano-SIM ) or dual SIM ( Nano-SIM | dual stand-by ) | Nano-SIM | eSIM |
Water Resistance | No | ip68 dust tight and water resistant immersible up to 1.5meterfor 30 min | waterproof 50 meter depth - 10 minutes |
Display type | Super AMOLED | IPS LCD | hdr bt.2020 | AMOLED | 2200 Luminance units ( the peak ) |
Display resolution | 1080 x 2400 pixels | 20 : 9 ratio ( ~411 pixel per inch density ) | 1080 x 2160 pixels | 18 : 9 ratio ( ~483 pixel per inch density ) | 466 x 466 pixels ( ~326 pixel per inch density ) |
Display size | 6.4 inches | 98.9 cm2 ( ~84.9% screen to body ratio ) | 5.0 inches | 64.5 cm2 ( ~73.5% screen to body ratio ) | 1.43 inches |
Display Protection | corning gorilla glass 5 | sapphire crystal glass | |
Operating System | android 10 | one ui 2.5 | android 8.0 ( oreo ) | upgradable to android 10 | hyperos |
CPU | Octa-core ( 2x2.0 GHz cortex-a75 & 6x1.7 GHz cortex-a55 ) | Octa-core ( 4x2.7 GHz kryo 385 gold & 4x1.7 GHz kryo 385 silver ) | |
Chipset | mediatek mt6768 helio p65 ( 12nm ) | Qualcomm sdm845 snapdragon 845 ( 10 nm ) | |
GPU | mali-g52 mc2 | adreno 630 | |
Memory card | microsdxc ( dedicated slot ) | microsdxc ( uses shared sim slot ) - dual sim model only | No |
Memory v1 | 64gb 4gb RAM | 64gb 4gb RAM | |
Memory v2 | 128gb 4gb RAM | 128gb 6gb RAM | 128gb 8gb RAM | 32gb | |
Primary camera | 48 megapixel| lens aperture2.0 | 26mm ( wide ) | 1/2.0" | 0.8µm | phase detection autofocus 8 megapixel| lens aperture2.2 | 123˚ | ( ultrawide ) | 1/4.0" | 1.12µm 5 megapixel| lens aperture2.4 | ( macro ) 5 megapixel| lens aperture2.4 | ( depth ) | 19 megapixel| lens aperture2.0 | 25mm ( wide ) | 1/2.3" | 1.22µm | predictive phase detection autofocus | |
Secondary camera | 20 megapixel| lens aperture2.2 | ( wide ) | 5 megapixel| lens aperture2.2 | 23mm ( wide ) | 1/5.0" | |
Loud speaker | Yes | Yes with stereo speakers | Yes |
Audio jack | Yes | No | No |
WLAN | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | dlna | No |
Bluetooth | 5.0 | a2dp | le | 5.0 | a2dp | aptx hd | le | 5.2 | a2dp | le |
GPS | |||
NFC | Yes ( market/region dependent ) | Yes | Yes ( NFC car key support ) |
Radio | FM Radio | rds | recording | No | No |
USB | USB Type-C 2.0 | otg | USB Type-C 3.1.0 | otg | No |
Sensors | fingerprint ( under display | optical ) | accelerometer | gyroscope | compass | fingerprint ( rear-mounted ) | accelerometer | gyroscope | proximity | barometer | compass | accelerometer | gyroscope | compass | barometer | heart rate | spo2 |
Battery | li-po 5000 mAh | Non-removable | Li-lon 2870 mAh | Non-removable | li-po 586 mAh |
Battery Charge | 15w wired | 18w wired | qc3 | |
Colors | black color gradations, prism color color gradations, red color gradations, white color gradations | black, white color gradations, green color gradations, pink color gradations | titanium color |
Network technology | gsm / hspa / lte | gsm / hspa / lte | gsm / hspa / lte |
5G bands | |||
Network speed | hspa lte-a | hspa 42.2/5.76 mbps lte (4ca) cat15 800/150 mbps | hspa lte |
GPRS | No | ||
EDGE | No | ||
Approx price |
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180 GBP
214 EUR
2040 NOK
2200 SEK
13200 RUB
210 USD
1110 BRL
310 AUD
280000 KRW
29000 JPY
290 SGD
940 MYR
770 AED
3600 ZAR
