Screen size
KF3902.0"
W10 AlphaWinner: 5.7"+65%
Quick verdict
W10 Alpha leads the measured specs 13-1.
Measured wins
KF390
1
spec wins
Ties
3
equal specs
W10 Alpha
13
spec wins
Overall winner
Screen size
Technology
KF390
GSM / HSPA
W10 Alpha
GSM / HSPA / LTE
2G bands
KF390
GSM 900 / 1800 / 1900 , GSM 850 / 900 / 1800 / 1900 for Brazil
W10 Alpha
GSM 850 / 900 / 1800 / 1900
3G bands
KF390
HSDPA 850 / 2100
W10 Alpha
HSDPA 850 / 900 / 2100
Speed
KF390
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
equal specs5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
W10 Alpha
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat13 600/150 Mbps
4G bands
KF390
-
W10 Alpha
1, 3, 5, 8, 40, 41
Announced
KF390
2008, July. Released 2009, Q1
W10 Alpha
2020, February 19. Released 2020, February 19
Status
KF390
Discontinued
W10 Alpha
Discontinued
Dimensions
KF390
99 x 48 x 17.4 mm (3.90 x 1.89 x 0.69 in)
W10 Alpha
147.3 x 71 x 8.9 mm (5.80 x 2.80 x 0.35 in)
Weight
KF390
110 g (3.88 oz)
W10 Alpha
170 g (6.00 oz)
SIM
KF390
Mini-SIM
W10 Alpha
Nano-SIM + Nano-SIM
Type
KF390
TFT, 256K colors
W10 Alpha
IPS LCD
Size
KF390
2.0 inches, 12.6 cm2 (~26.5% screen-to-body ratio)
W10 Alpha
5.71 inches, 81.7 cm2 (~78.1% screen-to-body ratio)
Resolution
KF390
176 x 220 pixels (~141 ppi density)
W10 Alpha
720 x 1512 pixels, 19:9 ratio (~293 ppi density)
Card slot
KF390
microSDHC (dedicated slot)
W10 Alpha
microSDXC (dedicated slot)
Phonebook
KF390
500 entries
W10 Alpha
-
Call records
KF390
40 dialed, 40 received, 40 missed calls
W10 Alpha
-
Internal
KF390
50MB
W10 Alpha
32GB 3GB RAM
Other
KF390
-
W10 Alpha
eMMC 5.1
Single
KF390
2 MP
W10 Alpha
8 MP, AF
Video
KF390
Yes
W10 Alpha
1080p@30fps
Features
KF390
-
W10 Alpha
LED flash, panorama, HDR
Single
KF390
Videocall camera
W10 Alpha
8 MP
Video
KF390
W10 Alpha
720p@30fps
Loudspeaker
KF390
Yes
W10 Alpha
Yes
Alert types
KF390
Vibration; Downloadable polyphonic, MP3 ringtones
W10 Alpha
-
3.5mm jack
KF390
No
W10 Alpha
Yes
WLAN
KF390
No
W10 Alpha
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
KF390
1.2
W10 Alpha
4.1, A2DP, LE
Positioning
KF390
No
W10 Alpha
GPS
Radio
KF390
FM radio
W10 Alpha
FM radio
USB
KF390
2.0
W10 Alpha
microUSB 2.0, OTG
NFC
KF390
-
W10 Alpha
No
Sensors
KF390
W10 Alpha
Accelerometer, proximity
Messaging
KF390
SMS, MMS, Email
W10 Alpha
-
Browser
KF390
WAP 2.0/xHTML, HTML
W10 Alpha
-
Games
KF390
Yes
W10 Alpha
-
Java
KF390
Yes, MIDP 2.0
W10 Alpha
-
Other
KF390
MP3/WAV/eAAC+ player H263/3GP player Predictive text input Voice memo
W10 Alpha
-
Type
KF390
Removable Li-Ion battery
W10 Alpha
Li-Po 3450 mAh
Stand-by
KF390
Up to 250 h
W10 Alpha
-
Talk time
KF390
Up to 3 h
W10 Alpha
-
Colors
KF390
Black
W10 Alpha
Black, Blue
Price
KF390
About 60 EUR
W10 Alpha
About 130 EUR
Models
KF390
-
W10 Alpha
LMX210, LMX210LMW, LM-X210LMW
OS
KF390
-
W10 Alpha
Android 9.0 (Pie)
Chipset
KF390
-
W10 Alpha
Unisoc SC9863A (28 nm)
CPU
KF390
-
W10 Alpha
Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
GPU
KF390
-
W10 Alpha
IMG8322