Sony Xperia U

Released 2012, May
110g, 12mm thickness
Android 2.3, up to 4.0
8GB storage, no card slot
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3.5"
480x854 pixels
5MP
720p
512MB RAM
NovaThor U8500
1320mAh
Li-Ion

Previously known as Sony Ericsson ST25i Kumquat

Network	Technology	GSM / HSPA
	2G bands	GSM 850 / 900 / 1800 / 1900
	3G bands	HSDPA 900 / 2100 - ST25i
		HSDPA 850 / 1900 / 2100 - ST25a
	Speed	HSPA 14.4/5.76 Mbps

Launch	Announced	2012, February. Released 2012, May
Launch	Status	Discontinued

Body	Dimensions	112 x 54 x 12 mm (4.41 x 2.13 x 0.47 in)
	Weight	110 g (3.88 oz)
	SIM	Mini-SIM

Display	Type	TFT
	Size	3.5 inches, 33.8 cm² (~55.8% screen-to-body ratio)
	Resolution	480 x 854 pixels, 16:9 ratio (~280 ppi density)
	Protection	Scratch-resistant glass

Platform	OS	Android 2.3 (Gingerbread), upgradable to 4.0 (Ice Cream Sandwich)
	Chipset	NovaThor U8500
	CPU	Dual-core 1.0 GHz Cortex-A9
	GPU	Mali-400

Memory	Card slot	No
	Internal	8GB (4GB user available), 512MB RAM

Main Camera	Single	5 MP, AF
	Features	LED flash, panorama
	Video	720p@30fps

Selfie camera	Single	VGA
	Video

Sound	Loudspeaker	Yes
	3.5mm jack	Yes

Comms	WLAN	Wi-Fi 802.11 b/g/n, hotspot, DLNA
	Bluetooth	2.1, A2DP, EDR
	GPS	Yes, with A-GPS
	Radio	Stereo FM radio, RDS
	USB	microUSB 2.0, USB On-The-Go

Features	Sensors	Accelerometer, proximity, compass

Battery	Type	Removable Li-Ion 1320 mAh battery
	Stand-by	Up to 260 h (2G) / Up to 472 h (3G)
	Talk time	Up to 6 h 36 min (2G) / Up to 5 h 36 min (3G)
	Music play	Up to 45 h

Misc	Colors	Black, White/ exchangeable bottom caps in white, black, pink, yellow
	SAR	1.09 W/kg (head) 0.93 W/kg (body)
	SAR EU	1.62 W/kg (head)
	Price	About 140 EUR

Tests	Display	Contrast ratio: 930:1 (nominal) / 1.758:1 (sunlight)
	Camera	Photo / Video
	Loudspeaker	Voice 65dB / Noise 65dB / Ring 72dB
	Audio quality	Noise -87.3dB / Crosstalk -87.7dB

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Sony Xperia U - user opinions and reviews

rokiroki
S2U
03 Nov 2020

I can't remember how I did root, but there are no apps for free sms-call which can run on XperiaU, it has very low RAM and if you install anything like that it's pretty much unusable. Also don't bother with custom roms. I'm using ...

Daisy
p{A
02 Nov 2020

@rokiroki Can you tell me how to root this phone to work in 2020? I cannot install any app for chat and free calls...

rokiroki
S2U
01 Nov 2020

Mine still works, just had to root and uninstall google services. Small, reliable, battery lasts great, led strap indicates calls and messages. I want phone like this one, just with more RAM and more storage, nothing else.