Screen size
B15 QWinner: 4.0"+50%
B252.0"
Quick verdict
B15 Q leads the measured specs 10-1.
Measured wins
B15 Q
10
spec wins
Overall winner
Ties
6
equal specs
B25
1
spec wins
Screen size
Technology
B15 Q
GSM / HSPA
B25
GSM
2G bands
B15 Q
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
B25
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
B15 Q
HSDPA 850 / 900 / 2100 - EU, EMEA, HSDPA 850 / 1700 / 1900 / 2100 - Latin America
B25
-
Speed
B15 Q
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
B25
-
GPRS
B15 Q
-
B25
Yes
EDGE
B15 Q
-
B25
Yes
Announced
B15 Q
2014, Q2. Released 2014, June
B25
2013. Released 2013
Status
B15 Q
Discontinued
B25
Discontinued
Dimensions
B15 Q
125 x 69.5 x 15 mm (4.92 x 2.74 x 0.59 in)
B25
125 x 57 x 22 mm (4.92 x 2.24 x 0.87 in)
Weight
B15 Q
170 g (6.00 oz)
B25
161 g (5.68 oz)
SIM
B15 Q
Dual SIM (Mini-SIM, dual stand-by)
B25
Dual SIM
Other
B15 Q
IP67 dust/water resistant (up to 1m for 30 min) MIL-STD-810G compliant Drop resistant up to 1.8m
B25
IP67 dust/water resistant (up to 1m for 30 min) Drop resistant up to 1.8m Flashlight
Type
B15 Q
TFT
B25
TFT
Size
B15 Q
4.0 inches, 45.5 cm2 (~52.4% screen-to-body ratio)
B25
2.0 inches, 12.4 cm2 (~17.4% screen-to-body ratio)
Resolution
B15 Q
480 x 800 pixels, 5:3 ratio (~233 ppi density)
B25
240 x 320 pixels, 4:3 ratio (~200 ppi density)
Protection
B15 Q
Corning Gorilla Glass
B25
-
OS
B15 Q
Android 4.4.2 (KitKat)
B25
-
Chipset
B15 Q
Mediatek MT6582M (28 nm)
B25
Mediatek MT6235
CPU
B15 Q
Quad-core 1.3 GHz Cortex-A7
B25
208 MHz
GPU
B15 Q
Mali-400MP2
B25
-
Card slot
B15 Q
microSDHC
B25
microSDHC (dedicated slot)
Internal
B15 Q
4GB 1GB RAM
B25
-
Phonebook
B15 Q
-
B25
Yes
Call records
B15 Q
-
B25
Yes
Single
B15 Q
5 MP, AF
B25
2 MP, AF
Features
B15 Q
LED flash
B25
-
Video
B15 Q
1080p@30fps
B25
Yes
Single
B15 Q
VGA
B25
-
Video
B15 Q
B25
-
Other
B15 Q
-
B25
No
Loudspeaker
B15 Q
Yes
B25
Yes
3.5mm jack
B15 Q
Yes
B25
Yes
WLAN
B15 Q
Wi-Fi 802.11 b/g/n, hotspot
B25
No
Bluetooth
B15 Q
4.0, A2DP, LE
B25
2.1
Positioning
B15 Q
GPS
B25
No
NFC
B15 Q
No
B25
No
Radio
B15 Q
FM radio
B25
FM radio
USB
B15 Q
microUSB 2.0
B25
microUSB 2.0
Sensors
B15 Q
Accelerometer, proximity
B25
Messaging
B15 Q
-
B25
SMS
Games
B15 Q
-
B25
No
Java
B15 Q
-
B25
Type
B15 Q
Li-Ion 2000 mAh, removable
B25
Li-Ion 1300 mAh, removable
Stand-by
B15 Q
Up to 504 h
B25
Up to 156 h
Talk time
B15 Q
Up to 16 h
B25
Up to 9 h 30 min
Colors
B15 Q
Black
B25
Black
Price
B15 Q
About 320 EUR
B25
About 140 EUR