Screen size
Folder 2Winner: 2.8"+29%
U3102.0"
Quick verdict
Folder 2 leads the measured specs 8-4.
Measured wins
Folder 2
8
spec wins
Overall winner
Ties
2
equal specs
U310
4
spec wins
Screen size
Technology
Folder 2
GSM / HSPA / LTE
U310
GSM / UMTS
2G bands
Folder 2
GSM 850 / 900 / 1800 / 1900
U310
GSM 900 / 1800 / 1900
3G bands
Folder 2
HSDPA 900 / 2100
U310
UMTS 2100
4G bands
Folder 2
LTE
U310
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
3.5mm jack
SD card
equal specsStereo speakers
-
Speed
Folder 2
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
U310
Yes, 384 kbps
Announced
Folder 2
2020, April 14. Released 2020, April 17
U310
2006, October
Status
Folder 2
Discontinued
U310
Discontinued
Dimensions
Folder 2
107.9 x 55 x 18 mm (4.25 x 2.17 x 0.71 in)
U310
94 x 49 x 18.3 mm (3.70 x 1.93 x 0.72 in)
Weight
Folder 2
127 g (4.48 oz)
U310
89 g (3.14 oz)
SIM
Folder 2
Nano-SIM
U310
Mini-SIM
Type
Folder 2
IPS LCD
U310
TFT, 256K colors
Size
Folder 2
2.8 inches, 24.3 cm2 (~40.9% screen-to-body ratio)
U310
2.0 inches, 12.6 cm2 (~27.3% screen-to-body ratio)
Resolution
Folder 2
240 x 320 pixels, 4:3 ratio (~143 ppi density)
U310
176 x 220 pixels (~141 ppi density)
Other
Folder 2
External 0.9 inches monochrome display
U310
Second external OLED, 65K colors display (96 x 96 pixels) Downloadable wallpapers
Card slot
Folder 2
microSDXC
U310
microSD (dedicated slot)
Phonebook
Folder 2
Practically unlimited entries and fields, Photocal
U310
500 entries, Photocall
Call records
Folder 2
Practically unlimited
U310
40 dialed, 40 received, 40 missed calls
Internal
Folder 2
8GB 1GB RAM
U310
-
Single
Folder 2
2 MP
U310
1.3 MP
Video
Folder 2
Yes
U310
QCIF
Features
Folder 2
-
U310
180 deg rotating lens
Other
Folder 2
Uses main camera
U310
No
Loudspeaker
Folder 2
Yes
U310
Yes
Alert types
Folder 2
-
U310
Vibration; Downloadable polyphonic, MP3, AAC ringtones
3.5mm jack
Folder 2
-
U310
No
WLAN
Folder 2
Wi-Fi 802.11 b/g/n
U310
No
Bluetooth
Folder 2
Yes
U310
1.1, A2DP
Positioning
Folder 2
GPS
U310
No
NFC
Folder 2
No
U310
-
Radio
Folder 2
FM radio
U310
No
USB
Folder 2
Yes
U310
Proprietary
Sensors
Folder 2
U310
Messaging
Folder 2
SMS(threaded view), MMS, Email, Push Email, IM
U310
SMS, EMS, MMS, Email
Games
Folder 2
Downloadable
U310
Yes
Java
Folder 2
No
U310
Yes, MIDP 2.0
Browser
Folder 2
-
U310
WAP 2.0/xHTML
Other
Folder 2
-
U310
Video telephony MP3/AAC/WMA/MP4 player Predictive text input Organizer
Type
Folder 2
Li-Ion 1470 mAh, removable
U310
Removable Li-Ion battery
Stand-by
Folder 2
-
U310
Up to 200 h
Talk time
Folder 2
-
U310
Up to 3 h 30 min
Colors
Folder 2
White, Platinum Gray
U310
Orange, Green, Chameleon
Price
Folder 2
About 150 EUR
U310
About 120 EUR