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Motorola KRZR K1 Mobile Phone
Motorola KRZR K1
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vivo Y21 Mobile Phone
vivo Y21
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vivo Y51 Mobile Phone
vivo Y51
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
vivo included a large 5000mAh battery with an 18W Fast-Charge capacity via its Type-C charging connection to offer a hassle-free experience.Read more
Read editorial reviews
User rating
42
4.2 out of 5
42 user ratings
5 stars
30 %
4 stars
54 %
3 stars
14 %
2 stars
0 %
1 stars
0 %
35
4.1 out of 5
35 user ratings
5 stars
40 %
4 stars
28 %
3 stars
28 %
2 stars
2 %
1 stars
0 %
41
4.0 out of 5
41 user ratings
5 stars
36 %
4 stars
31 %
3 stars
31 %
2 stars
0 %
1 stars
0 %

Hardware

Operating systemProprietary OSAndroid 5.1Android 5.0
CPU coresSingle-coreQuad-coreQuad-core
CPU clock speed
N/A
1.3 GHz1.2 GHz
CPU model
N/A
Mediatek MT6580Qualcomm Snapdragon 410 MSM8916
GPU model
N/A
ARM Mali-400 MPQualcomm Adreno 306
RAM memory
N/A
1 GB2 GB

Display

Screen size1.9 in4.5 in5.0 in
Touchscreenno
N/A
N/A
Number of colors262K16.7M16.7M
Resolution176 x 220 px854 x 480 px960 x 540 px
TechnologyCSTNIPS LCDIPS LCD
Dual screen supportyes
N/A
N/A
Scratch resistant displayno
N/A
N/A
HDRno
N/A
N/A
Panel type
N/A
LCDLCD
Pixel density
N/A
218.0 ppi220.0 ppi
Multi touch
N/A
yesyes
Screen material
N/A
N/A
Corning Gorilla Glass

Rear camera

Primary sensor resolution2.0 Mpx5.0 Mpx8.0 Mpx
Video recordingyes
N/A
N/A
Highest video resolution176 x 144 px1280 x 720 px1920 x 1080 px
Autofocus
N/A
yesyes
Burst Mode
N/A
yesyes
Digital Image Stabilization
N/A
yesyes
Digital zoom
N/A
yesyes
Face detection
N/A
yesyes
Geo-tagging
N/A
yesyes
HDR Capture
N/A
yesyes
LED Flash
N/A
yesyes
Panorama
N/A
yesyes
Touch focus
N/A
yesyes
Primary lens aperture
N/A
N/A
2.0 f
Gesture Shot
N/A
N/A
yes
Smile detection
N/A
N/A
yes

Storage

Internal storage16 MB16 GB16 GB
Memory card readeryesyesyes
Maximum card storage2GB128GB128GB
Types of memory card supportedmicroSDmicroSDmicroSD

Dimensions

Height4.06 in5.15 in5.66 in
Width1.65 in2.61 in2.82 in
Depth0.59 in0.36 in0.3 in
Weight3.6 oz5.54 oz5.54 oz

Connectivity

Dual sim supportnoyesyes
Sim card sizeMini-SIMMicro-SIMNano-SIM
DLNA certifiedno
N/A
N/A
Bluetoothyesyesyes
Bluetooth version2.04.04.0
Bluetooth profileA2DP
N/A
N/A
NFCno
N/A
N/A
Charging connectionUSB
N/A
N/A
USB version2.0
N/A
N/A
Video outputNo
N/A
N/A
Headphone connection
N/A
3.5 mm3.5 mm
Type of USB connector
N/A
Micro-USBMicro-USB
USB On-The-Go (OTG)
N/A
yes
N/A

Cellular

Wireless network (Wi-Fi)noyesyes
2G GSMyesyesyes
3G UMTSno
N/A
N/A
4G LTEno
N/A
yes
Data transmission
N/A
HSPA+HSDPA
Navigation system
N/A
GPSGPS
GSM frequencies
N/A
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
UMTS frequences
N/A
  • 850 MHz
  • 900 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 1900 MHz
  • 2100 MHz
Mobile hotspot
N/A
yesyes
LTE frequencies
N/A
N/A
  • 800 MHz
  • 1800 MHz
  • 1900 MHz
  • 2100 MHz
  • 2600 MHz

Battery

Replaceable batteryyes
N/A
N/A
Battery capacity780.0 mAh1900.0 mAh2350.0 mAh
Standby time348.0 h180.0 h
N/A
Talk time6.5 h5.0 h
N/A
Fast chargingno
N/A
N/A
Battery type
N/A
Lithium ionLithium ion

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