Screen size
T18s—
T20e—
Quick verdict
T18s leads the measured specs 2-1.
Measured wins
T18s
2
spec wins
Overall winner
Ties
3
equal specs
T20e
1
spec wins
Screen size
Technology
T18s
GSM
T20e
GSM
2G bands
T18s
GSM 900 / 1800
T20e
GSM 900 / 1800
GPRS
T18s
No
T20e
No
EDGE
T18s
No
T20e
No
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
equal specsSD card
equal specsStereo speakers
Announced
T18s
1999
T20e
2001
Status
T18s
Discontinued
T20e
Discontinued
Dimensions
T18s
105 x 49 x 24 mm (4.13 x 1.93 x 0.94 in)
T20e
101 x 54 x 28 mm (3.98 x 2.13 x 1.10 in)
Weight
T18s
146 g (5.15 oz)
T20e
128 g (4.52 oz)
SIM
T18s
Mini-SIM
T20e
Mini-SIM
Type
T18s
Monochrome graphic
T20e
Monochrome graphic
Size
T18s
T20e
Resolution
T18s
101 x 33 pixels, 3 x 12 chars
T20e
101 x 33 pixels, 3 x 12 chars
Other
T18s
Fixed icons
T20e
-
Card slot
T18s
No
T20e
No
Phonebook
T18s
99
T20e
Call records
T18s
T20e
10 received, dialed and missed calls
Other
T18s
-
T20e
SMS Templates
Other
T18s
No
T20e
No
Loudspeaker
T18s
No
T20e
No
Alert types
T18s
Vibration; Monophonic ringtones, composer
T20e
Vibration; Downloadable monophonic ringtones, composer
3.5mm jack
T18s
No
T20e
No
WLAN
T18s
No
T20e
No
Bluetooth
T18s
No
T20e
No
Positioning
T18s
No
T20e
No
Radio
T18s
No
T20e
No
USB
T18s
T20e
Sensors
T18s
T20e
Messaging
T18s
SMS
T20e
SMS
Browser
T18s
T20e
WAP with added security
Clock
T18s
Yes
T20e
Yes
Alarm
T18s
Yes
T20e
Yes
Games
T18s
No
T20e
5
Languages
T18s
24
T20e
24
Java
T18s
No
T20e
No
Other
T18s
Voice dialing Voice answering
T20e
Mobile chat Swatch Internet Time Voice dial Voice answer Calculator Stopwatch Pictures and sound in SMS Start-up shut-down shows Profiles Active flip
Type
T18s
Removable NiMH 750 mAh battery
T20e
Removable NiMH battery
Stand-by
T18s
100 h
T20e
200 h
Talk time
T18s
4 h
T20e
10 h
Colors
T18s
3
T20e
5 - Purple Wild, Blue Whirl, Lime Twist, Silver Weave, Beige Harmony