Xperia U Sony

  • clock speed
    1
    GHz
  • RAM
    0.5
    GB
  • size
    3.5
    inches
  • resolution
    279
    ppi

Xperia Arc S Sony

  • clock speed
    1.4
    GHz
  • RAM
    0.5
    GB
  • size
    4.2
    inches
  • resolution
    233
    ppi

Detailed Comparison

display

Size
3.5"
4.2"
Resolution
854 x 480 (279 ppi)
854 x 480 (233 ppi)
Panel
TFT LCD (RGB)
TFT LCD (RGB)
Brightness
515 cd/m²
--
Contrast in sunlight
1.758
--
Surface
Scratch-resistant glass
Scratch-resistant glass
Video out
720p (Micro USB with MHL)
720p (Micro HDMI)

processor

System on a chip
ST-Ericsson Nova Thor (U8500)
Qualcomm Snapdragon S2 (MSM8255)
CPU
1 GHz, ARM Cortex A9
1.4 GHz, Qualcomm Scorpion
Architecture
Dual core
Single core
Linpack
64.9
--
Quadrant
--
--
GPU
ARM Mali-400
245 MHz, Qualcomm Adreno 205
Architecture
Single core
Single core
GL benchmark 2.5
--
--
Epic citadel
--
--
Basemark x
--
--
RAM
0.5 GB
0.5 GB

camera

Lens
f/2.0, 4 mm (30 mm equiv.)
f/2.4, 4 mm (30 mm equiv.)
Resolution
5 MP (2592 x 1944)
8 MP (3264 x 2448)
Sensor
1/3" (4.8 mm × 3.6 mm)
1/3" (4.8 mm × 3.6 mm)
Light sensitivity
--
--
Flash
LED
LED
Autofocus
Yes
Yes
Image stabilization
Digital
Digital
Panorama
Yes
Yes
Continuous shooting
None
None
Aperture
f/2.0
f/2.4
Secondary camera
0.3 MP
None

video

Video resolution
1280 x 720 @ 30 fps
1280 x 720 @ 30 fps
Video file format
MP4 H.264/MPEG-4 AVC
MP4 H.264/MPEG-4 AVC
Maximum bitrate
14 Mbps
14 Mbps
Video light
Yes
Yes

battery

Type
Lithium-Ion Polymer (Removable)
Lithium-Ion Polymer (Removable)
Capacity
1,320 mA·h
1,500 mA·h
Talk time
336 min
450 min
Standby time
28,320 min
27,600 min
Tested
3G talk time
--
--
Web browsing
--
--
Video playback
--
--

music

Speaker
Stereo (Back)
Mono (Back)
Frequency response
+0.03, -0.04
+0.11, -0.10
Noise level
-87.3 dB
-89.3 dB
Headphone
3.5 mm
3.5 mm
Frequency response
+0.45, -0.10
+0.41, -0.12
Noise level
-86.4 dB
-88.8 dB
FM radio
Receive
Receive

form factor

Size
54 x 112 x 12 mm
63 x 125 x 8.7 mm
Weight
110 g
117 g
Body
Plastic
Plastic
Keyboard
None
None
Buttons
Home, Volume, Back, Multitask, Camera
Home, Volume, Back, Multitask, Camera

software

Operating system
Android 2.3
Android 2.3
Upgradable to
Android 4.0
Android 4.0.4
Custom UI
--
--
Onscreen keyboards
--
--
Sunspider
2,814 ms
--

connectivity

Network
3.5G, HSDPA (7.2 Mb/s)
3.5G, HSDPA (7.2 Mb/s)
WiFi
802.11b/g/n (Hotspot)
802.11b/g/n (Hotspot)
NFC
No
No
Bluetooth
2.1+EDR
2.1+EDR
USB On-the-Go
Yes
--

features

Internal storage
8 GB
1 GB
Supported card formats
None
microSD
Included accessories
--
--
SIM card
--
--
Speaker volume (Voice)
65.7 dB
66.2 dB
Speaker volume (Music)
65.1 dB
65.2 dB
Special-features

sensors

Location
A-GPS
A-GPS, GLONASS
Gyroscope
No
Yes
Accelerometer
Yes
Yes
Light sensor
Yes
Yes
Proximity sensor
Yes
Yes
Compass
Yes
Yes
Thermometer
No
No
Barometer
No
No
Hygrometer
No
No