Screen size
X1b—
X1i—
Quick verdict
X1b and X1i are close on the measured specs.
Measured wins
X1b
0
spec wins
Ties
6
equal specs
X1i
0
spec wins
Screen size
Resolution
equal specsTechnology
X1b
GSM
X1i
GSM
2G bands
X1b
GSM 900 / 1800 / 1900
X1i
GSM 900 / 1800 / 1900
GPRS
X1b
Yes
X1i
Class 10
EDGE
X1b
No
X1i
No
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
equal specsThickness
equal specsIP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Announced
X1b
2005, Q2
X1i
2004, Q3
Status
X1b
Discontinued
X1i
Discontinued
Dimensions
X1b
102 x 44 x 18 mm (4.02 x 1.73 x 0.71 in)
X1i
102 x 45 x 18 mm (4.02 x 1.77 x 0.71 in)
Weight
X1b
86 g (3.03 oz)
X1i
86 g (3.03 oz)
SIM
X1b
Mini-SIM
X1i
Mini-SIM
Type
X1b
TFT, 65K colors
X1i
TFT, 65K colors
Size
X1b
X1i
Resolution
X1b
128 x 128 pixels, 1:1 ratio
X1i
128 x 128 pixels, 1:1 ratio
Other
X1b
5-way navigation key
X1i
5-way navigation key
Card slot
X1b
No
X1i
No
Phonebook
X1b
Yes
X1i
250 entries
Call records
X1b
Yes
X1i
Yes
Internal
X1b
16MB
X1i
-
Single
X1b
CIF
X1i
CIF
Video
X1b
No
X1i
No
Other
X1b
No
X1i
No
Loudspeaker
X1b
Yes
X1i
No
Alert types
X1b
Vibration; Downloadable polyphonic ringtones
X1i
Vibration; Downloadable polyphonic ringtones
3.5mm jack
X1b
No
X1i
No
WLAN
X1b
No
X1i
No
Bluetooth
X1b
Yes
X1i
No
Positioning
X1b
No
X1i
No
Radio
X1b
No
X1i
No
USB
X1b
X1i
Sensors
X1b
X1i
Messaging
X1b
SMS, EMS, MMS
X1i
SMS, MMS
Browser
X1b
WAP 2.0/xHTML
X1i
WAP 2.0/xHTML
Games
X1b
Yes
X1i
2 - Jumping Bear , Mini Golf
Java
X1b
No
X1i
No
Other
X1b
Predictive text input Organizer
X1i
Predictive text input Organizer
Type
X1b
Removable Li-Ion battery
X1i
Removable Li-Ion battery
Stand-by
X1b
Up to 200 h
X1i
Up to 235 h
Talk time
X1b
Up to 3 h
X1i
Up to 3 h
Colors
X1b
X1i
Silver