Screen size
equal specsA154.0"
A44.0"
Quick verdict
A15 leads the measured specs 7-2.
Measured wins
A15
7
spec wins
Overall winner
Ties
6
equal specs
A4
2
spec wins
Screen size
equal specsTechnology
A15
GSM / HSPA
A4
GSM / HSPA
2G bands
A15
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
A4
GSM 850 / 1900 - SIM 1 & SIM 2, GSM 900 / 1800 - SIM 1 & SIM 2
3G bands
A15
HSDPA 2100
A4
HSDPA 900 / 2100 , HSDPA 850 / 1900
Speed
A15
HSPA 7.2/0.384 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
A4
HSPA
Announced
A15
2012
A4
2013, March. Released 2013, March
Status
A15
Discontinued
A4
Discontinued
Dimensions
A15
-
A4
124.8 x 66 x 9.5 mm (4.91 x 2.60 x 0.37 in)
Weight
A15
-
A4
75 g (2.65 oz)
SIM
A15
Dual SIM (Mini-SIM)
A4
Dual SIM (Mini-SIM)
Type
A15
TFT
A4
TFT, 256K colors
Size
A15
4.0 inches, 45.5 cm2
A4
4.0 inches, 47.6 cm2 (~57.8% screen-to-body ratio)
Resolution
A15
480 x 800 pixels, 5:3 ratio (~233 ppi density)
A4
320 x 480 pixels, 3:2 ratio (~144 ppi density)
OS
A15
Android 4.0.4 (Ice Cream Sandwich)
A4
Android 2.3.6 (Gingerbread)
CPU
A15
1.0 GHz
A4
-
Card slot
A15
microSDHC (dedicated slot)
A4
microSDHC (dedicated slot)
Internal
A15
4GB (2.5GB user available), 512MB RAM
A4
256MB 512MB
Single
A15
3.15 MP
A4
3.15 MP
Video
A15
Yes
A4
Yes
Other
A15
No
A4
-
Single
A15
-
A4
Yes
Video
A15
-
A4
Loudspeaker
A15
Yes
A4
Yes
3.5mm jack
A15
Yes
A4
Yes
WLAN
A15
Wi-Fi 802.11 b/g/n
A4
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
A15
2.0
A4
Yes
Positioning
A15
GPS
A4
No
NFC
A15
No
A4
No
Radio
A15
FM radio
A4
FM radio
USB
A15
microUSB 2.0
A4
Proprietary
Sensors
A15
Accelerometer
A4
Accelerometer
Type
A15
Li-Ion 1420 mAh, removable
A4
Li-Ion 1400 mAh battery
Stand-by
A15
Up to 150 h
A4
Up to 250 h
Talk time
A15
-
A4
Up to 4 h 20 min
Colors
A15
Black
A4
White/Black
SAR
A15
0.59 W/kg (head)
A4
-
Price
A15
About 80 EUR
A4
About 70 EUR