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Compare 3 products

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Jiayu S4 Mobile Phone
Jiayu S4
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Motorola KRZR K1 Mobile Phone
Motorola KRZR K1
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Samsung Galaxy Amp 2 Mobile Phone
Samsung Galaxy Amp 2
Editiorial 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
Read editorial reviews
1
1 editorial reviews
If you live within newbie Aio Wireless' tiny network, the $130 Samsung Galaxy Amp smartphone is a good no-contract Android buy.Read more
Read editorial reviews
User rating
38
4.0 out of 5
38 user ratings
5 stars
31 %
4 stars
39 %
3 stars
28 %
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 %
46
4.2 out of 5
46 user ratings
5 stars
39 %
4 stars
47 %
3 stars
10 %
2 stars
2 %
1 stars
0 %

Hardware

Operating systemAndroid 5.0Proprietary OSAndroid 6.0
CPU clock speed1.7 GHz
N/A
N/A
CPU cores8-coreSingle-coreQuad-core
CPU modelMediaTek MT6752
N/A
N/A
GPU modelARM Mali-T760 MP2
N/A
N/A
RAM memory3 GB
N/A
1 GB

Display

Screen size4.7 in1.9 in4.5 in
Number of colors16.7M262K16.7M
Panel typeLCD
N/A
OLED
Resolution1280 x 720 px176 x 220 px854 x 480 px
TechnologyIPS LCDCSTNSuper AMOLED
Pixel density312.0 ppi
N/A
218.0 ppi
Screen materialCorning Gorilla Glass
N/A
N/A
Multi touchyes
N/A
yes
Touchscreen
N/A
no
N/A
Dual screen support
N/A
yes
N/A
Scratch resistant display
N/A
no
N/A
HDR
N/A
no
N/A

Rear camera

Primary sensor resolution13.0 Mpx2.0 Mpx5.0 Mpx
Primary lens aperture2.0 f
N/A
N/A
Highest video resolution1920 x 1080 px176 x 144 px1280 x 720 px
Autofocusyes
N/A
yes
LED Flashyes
N/A
yes
Video recording
N/A
yes
N/A
Digital zoom
N/A
N/A
yes
Face detection
N/A
N/A
yes
Geo-tagging
N/A
N/A
yes
HDR Capture
N/A
N/A
yes
Panorama
N/A
N/A
yes
Smile detection
N/A
N/A
yes

Storage

Internal storage16 GB16 MB8 GB
Memory card readeryesyesyes
Maximum card storage64GB2GB128GB
Types of memory card supportedmicroSDmicroSDmicroSD

Connectivity

Dual sim supportyesno
N/A
Sim card sizeMicro-SIMMini-SIM
N/A
Bluetoothyesyesyes
Bluetooth version4.02.04.0
Headphone connection3.5 mm
N/A
3.5 mm
Type of USB connectorMicro-USB
N/A
Micro-USB
DLNA certified
N/A
no
N/A
Bluetooth profile
N/A
A2DP
N/A
NFC
N/A
no
N/A
Charging connection
N/A
USB
N/A
USB version
N/A
2.0
N/A
Video output
N/A
No
N/A

Cellular

Wireless network (Wi-Fi)yesnoyes
Data transmissionHSPA+
N/A
HSPA+
Navigation systemGPS
N/A
GPS
2G GSMyesyesyes
GSM frequencies
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
N/A
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
UMTS frequences
  • 850 MHz
  • 900 MHz
  • 1900 MHz
  • 2100 MHz
N/A
  • 850 MHz
  • 900 MHz
  • 2100 MHz
4G LTEyesnoyes
Mobile hotspotyes
N/A
yes
3G UMTS
N/A
no
N/A
LTE frequencies
N/A
N/A
  • 700 MHz
  • 850 MHz
  • 1900 MHz

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