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HTC O2 Mobile Phone
HTC O2
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Karbonn A25 Mobile Phone
Karbonn A25
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Motorola KRZR K1 Mobile Phone
Motorola KRZR K1
Editiorial reviews
4
4 editorial reviews
Microsoft is applying the defibrillator to its mobile phone platform with a completely new interface and approach. It's radically different - but still has lots of rough edges (updated)Read more
The brick that means businessRead more
The O2 Xda Orbit 2 may seem like business as usual, but it's a smart phone with oomph. Featuring HSDPA, Wi-Fi and Bluetooth, you get a plethora of connectivity options to keep in touch with the world. Throw in GPS for good measure, and you won't be lost eitherRead more
Read editorial reviews
5
5 editorial reviews
The KRZR K1 is image-maker: it successfully inherits the RAZR family sporting design and style that put it out of the crowd of boring phones you are used to - it's narrow, blue, shiny and fashionable piece of art. Sadly it has very weak signal reception, but the voice quality during a call reminds you that the used phone is of high class. The KRZR packs average features in perfectly looking solid construction, but we'd like better implementation of the features like higher resolution of the screen (QVGA is not science fiction anymore) and auto-focus for the cameraRead more
Motorola has launched a new leader. The popular RAZR is being substituted by the new KRZR, whose glossy materials look luxurious. On the other hand, the...Read more
In other words, the successor to the iconic RAZRRead more
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User rating
31
4.2 out of 5
31 user ratings
5 stars
32 %
4 stars
54 %
3 stars
12 %
2 stars
0 %
1 stars
0 %
18
4.4 out of 5
18 user ratings
5 stars
55 %
4 stars
27 %
3 stars
16 %
2 stars
0 %
1 stars
0 %
42
4.2 out of 5
42 user ratings
5 stars
30 %
4 stars
54 %
3 stars
14 %
2 stars
0 %
1 stars
0 %

Hardware

Operating systemAndroid 6.0Android 4.0Proprietary OS
CPU cores8-coreDual-coreSingle-core
RAM memory4 GB
N/A
N/A
CPU clock speed
N/A
1.0 GHz
N/A

Display

Screen size6.0 in5.0 in1.9 in
Resolution2560 x 1440 px800 x 480 px176 x 220 px
TechnologyQHD
N/A
CSTN
Pixel density490.0 ppi187.0 ppi
N/A
Multi touchyesyes
N/A
Panel type
N/A
LCD
N/A
Touchscreen
N/A
N/A
no
Number of colors
N/A
N/A
262K
Dual screen support
N/A
N/A
yes
Scratch resistant display
N/A
N/A
no
HDR
N/A
N/A
no

Rear camera

Primary sensor resolution20.7 Mpx5.0 Mpx2.0 Mpx
Highest video resolution1920 x 1080 px
N/A
176 x 144 px
Autofocusyes
N/A
N/A
Face detectionyes
N/A
N/A
Geo-taggingyes
N/A
N/A
HDR Captureyes
N/A
N/A
LED Flashyesyes
N/A
Optical image stabilizationyes
N/A
N/A
Smile detectionyes
N/A
N/A
Touch focusyes
N/A
N/A
Video recording
N/A
N/A
yes

Storage

Internal storage
  • 128 GB
  • 32 GB
  • 64 GB
N/A
16 MB
Types of memory card supportedNo memory slotmicroSDmicroSD
Memory card reader
N/A
yesyes
Maximum card storage
N/A
32GB2GB

Connectivity

Dual sim supportno
N/A
no
Bluetoothyesyesyes
Bluetooth version4.0
N/A
2.0
Headphone connection3.5 mm3.5 mm
N/A
Type of USB connectorMicro-USBMicro-USB
N/A
Sim card size
N/A
N/A
Mini-SIM
DLNA certified
N/A
N/A
no
Bluetooth profile
N/A
N/A
A2DP
NFC
N/A
N/A
no
Charging connection
N/A
N/A
USB
USB version
N/A
N/A
2.0
Video output
N/A
N/A
No

Cellular

Wireless network (Wi-Fi)yesyesno
Data transmissionHSPA+
N/A
N/A
Navigation systemGPS
N/A
N/A
2G GSMyesyesyes
GSM frequencies
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
N/A
UMTS frequences
  • 900 MHz
  • 2100 MHz
N/A
N/A
4G LTEyes
N/A
no
Mobile hotspotyes
N/A
N/A
3G UMTS
N/A
N/A
no

Battery

Battery typeLithium PolymerLithium ion
N/A
Battery capacity3500.0 mAh2000.0 mAh780.0 mAh
Standby time
N/A
300.0 h348.0 h
Talk time
N/A
6.0 h6.5 h
Replaceable battery
N/A
N/A
yes
Fast charging
N/A
N/A
no