Screen size
A27 RetinaWinner: 4.3"+40%
K4+ Titan2.6"
Quick verdict
A27 Retina leads the measured specs 9-4.
Measured wins
A27 Retina
9
spec wins
Overall winner
Ties
3
equal specs
K4+ Titan
4
spec wins
Screen size
Technology
A27 Retina
GSM / HSPA
K4+ Titan
GSM
2G bands
A27 Retina
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
K4+ Titan
GSM 900 / 1800 - SIM 1 & SIM 2
3G bands
A27 Retina
HSDPA 2100
K4+ Titan
-
Speed
A27 Retina
HSPA 7.2/0.384 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
K4+ Titan
-
GPRS
A27 Retina
-
K4+ Titan
Yes
EDGE
A27 Retina
-
K4+ Titan
No
Announced
A27 Retina
2013, March. Released 2013, March
K4+ Titan
2012
Status
A27 Retina
Discontinued
K4+ Titan
Discontinued
Dimensions
A27 Retina
133.6 x 66 x 9.1 mm (5.26 x 2.60 x 0.36 in)
K4+ Titan
118.8 x 52.5 x 14.9 mm (4.68 x 2.07 x 0.59 in)
Weight
A27 Retina
126.5 g (4.44 oz)
K4+ Titan
95 g (3.35 oz)
SIM
A27 Retina
Dual SIM (Mini-SIM)
K4+ Titan
Dual SIM (Mini-SIM)
Type
A27 Retina
IPS LCD
K4+ Titan
TFT, 65K colors
Size
A27 Retina
4.3 inches, 51.0 cm2 (~57.8% screen-to-body ratio)
K4+ Titan
2.6 inches, 20.9 cm2 (~33.6% screen-to-body ratio)
Resolution
A27 Retina
540 x 960 pixels, 16:9 ratio (~256 ppi density)
K4+ Titan
240 x 320 pixels, 4:3 ratio (~154 ppi density)
OS
A27 Retina
Android 4.1 (Jelly Bean)
K4+ Titan
-
CPU
A27 Retina
Dual-core 1.2 GHz
K4+ Titan
-
Card slot
A27 Retina
microSDHC (dedicated slot)
K4+ Titan
microSDHC (dedicated slot)
Internal
A27 Retina
4GB 512MB RAM
K4+ Titan
-
Phonebook
A27 Retina
-
K4+ Titan
500 entries
Call records
A27 Retina
-
K4+ Titan
Yes
Single
A27 Retina
8 MP, AF
K4+ Titan
1.3 MP
Features
A27 Retina
LED flash
K4+ Titan
-
Video
A27 Retina
Yes
K4+ Titan
Yes
Single
A27 Retina
2 MP
K4+ Titan
-
Video
A27 Retina
K4+ Titan
-
Other
A27 Retina
-
K4+ Titan
No
Loudspeaker
A27 Retina
Yes
K4+ Titan
Yes, with stereo speakers
3.5mm jack
A27 Retina
Yes
K4+ Titan
No
WLAN
A27 Retina
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
K4+ Titan
No
Bluetooth
A27 Retina
Yes
K4+ Titan
2.0
Positioning
A27 Retina
GPS
K4+ Titan
No
NFC
A27 Retina
No
K4+ Titan
No
Radio
A27 Retina
FM radio
K4+ Titan
Wireless FM radio (no wired headphones required)
USB
A27 Retina
Proprietary
K4+ Titan
microUSB
Sensors
A27 Retina
Accelerometer
K4+ Titan
Messaging
A27 Retina
-
K4+ Titan
SMS, MMS
Games
A27 Retina
-
K4+ Titan
Yes
Java
A27 Retina
-
K4+ Titan
Yes
Other
A27 Retina
-
K4+ Titan
Audio/video player Photo viewer Organizer
Type
A27 Retina
Li-Ion 1800 mAh battery
K4+ Titan
Li-Ion 2200 mAh battery
Stand-by
A27 Retina
Up to 180 h
K4+ Titan
Up to 600 h
Talk time
A27 Retina
Up to 4 h
K4+ Titan
Up to 10 h
Colors
A27 Retina
Black
K4+ Titan
Black/Silver, White/Black
SAR EU
A27 Retina
1.00 W/kg (head)
K4+ Titan
0.95 W/kg (head)
Price
A27 Retina
About 160 EUR
K4+ Titan
About 30 EUR