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Microsoft Lumia 638 vs Kekai K21

Compare Microsoft Lumia 638

Rs. 11,990
(Discontinued)

 

View Details >

Compare Kekai K21

NA
(Discontinued)

 

View Details >

Summary
Performance

Snapdragon 400

1 GB RAM

N/A

Display

4.5" (11.43 cm)

480x854 px

1.8" (4.57 cm)

128x160 px

Rear Camera

5 MP

Single Camera

0.3 MP

Single Camera

Battery

1830 mAh

1500 mAh

8 h talktime (2G)

Storage

8 GB

128 GB (Expandable)

N/A

Front Camera

N/A

N/A

User Rating

★★★★★
★★★★★

3.9/5 based on 1,410 ratings

★★★★★
★★★★★

3.8/5 based on 32 ratings

Compare Prices
Microsoft Lumia 638 is permanently discontinued.
Kekai K21 is permanently discontinued.
General
Operating System

Windows Phone v8.1

Performance
Chipset

Qualcomm Snapdragon 400 MSM8926

CPU

Quad core, 1.2 GHz, Cortex A7

Graphics

Adreno 305

RAM

1 GB

Display
Display Type

IPS LCD

TFT

Screen Size

4.5 " (11.43 cm)

1.8 " (4.57 cm)

Resolution

480x854 px

128x160 px

Pixel Density

218 ppi

114 ppi

Screen to Body Ratio (calculated)

64.59 %

Touch Screen

, Capacitive Touchscreen, Multi-touch

Design
Size Compare
Dimensions

Height: 129.5 mm
Width: 66.7 mm
Thickness: 9.2 mm

Weight

134 grams

Colours

Black, White

Black

Camera
Main Camera
Camera Setup

Single

Single

Resolution

5 MP f/2.4, Primary Camera(28 mm focal length)

0.3 MP Primary Camera

Autofocus

Image Resolution

2592 x 1944 Pixels

640 x 480 Pixels

Settings

Exposure compensation, ISO control

Shooting Modes

Macro Mode

Camera Features

4 x Digital Zoom
Face detection
Touch to focus

Digital Zoom

Video Recording

1280x720 @ 30 fps

Front Camera
Battery
Capacity

1830 mAh

1500 mAh

Type

Li-ion

Li-ion

TalkTime

Up to 8 Hours(2G)

Standby time

Up to 30 Day(2G)

Storage
Internal Memory

8 GB

Expandable Memory

, Up to 128 GB

, Up to 8 GB

Network & Connectivity
SIM Slot(s)

Single SIM, GSM

Dual SIM, GSM+GSM

SIM Size

SIM1: Micro

SIM1: Mini
SIM2: Mini

Network Support

5G Not Supported in India, 4G Supported in India, 3G, 2G

5G Not Supported in India, 2G

SIM 1

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
FD-LTE 1800(band 3) / 2600(band 7)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
4G Speed:
50 Mbit/s ↑ 150 Mbit/s ↓ (LTE category 4)
3G Speed:
HSDPA 42.2 Mbit/s ↓, HSUPA 5.76 Mbit/s ↑
GPRS:
Available
EDGE:
Available
Read More..

2G Bands:
GSM 1800 / 900 MHz
GPRS:
Available

SIM 2

2G Bands:
GSM 1800 / 900 MHz

Wi-Fi

, Wi-Fi 4 (802.11 b/g/n)

Bluetooth

, v4.0

GPS

with A-GPS, Glonass

USB Connectivity

microUSB 2.0

Multimedia
FM Radio

Loudspeaker

Audio Jack

3.5 mm

3.5 mm

Video Player

, Video Formats: 3GP, MPEG4

Ring Tone

Music ringtones, Polyphonic ringtones, Vibration

Music

, Music Formats: MP3

Special Features

Torch Light, Voice recording

Sensors
Other Sensors

Accelerometer

Games

Browser

, WAP

Phone Book

, Limited, 300 entries

Other Facilities

Calculator, Stopwatch, Calendar, Alarm