Screen size
equal specsS882.0"
SL912.0"
Quick verdict
SL91 leads the measured specs 5-2.
Measured wins
S88
2
spec wins
Ties
4
equal specs
SL91
5
spec wins
Overall winner
Screen size
equal specsTechnology
S88
GSM
SL91
GSM / UMTS
2G bands
S88
GSM 900 / 1800 / 1900
SL91
GSM 900 / 1800 / 1900
GPRS
S88
Class 10
SL91
-
EDGE
S88
No
SL91
-
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
3G bands
S88
-
SL91
UMTS 2100
Speed
S88
-
SL91
Yes, 384 kbps
Announced
S88
2006, January
SL91
2006, July
Status
S88
Discontinued
SL91
Discontinued
Dimensions
S88
99 x 47 x 17 mm (3.90 x 1.85 x 0.67 in)
SL91
89 x 47 x 23 mm (3.50 x 1.85 x 0.91 in)
Weight
S88
105 g (3.70 oz)
SL91
109 g (3.84 oz)
SIM
S88
Mini-SIM
SL91
Mini-SIM
Type
S88
AMOLED, 256K colors
SL91
TFT, 16M colors
Size
S88
2.0 inches, 31 x 39 mm, 12.6 cm2 (~27.1% screen-to-body ratio)
SL91
2.0 inches, 12.4 cm2 (~29.6% screen-to-body ratio)
Resolution
S88
176 x 220 pixels (~141 ppi density)
SL91
240 x 320 pixels, 4:3 ratio (~200 ppi density)
Other
S88
-
SL91
Touch-sensitive navigation keys
Card slot
S88
microSD (dedicated slot)
SL91
microSD (dedicated slot)
Phonebook
S88
Yes, Photo call
SL91
Yes, Photo call
Call records
S88
10 dialed, 10 received, 10 missed calls
SL91
10 dialed, 10 received, 10 missed calls
Internal
S88
20MB
SL91
64MB
Single
S88
2 MP, AF
SL91
3.15 MP, AF
Features
S88
LED flash
SL91
-
Video
S88
Yes
SL91
Yes
Other
S88
No
SL91
-
Single
S88
-
SL91
VGA videocall camera
Video
S88
-
SL91
Loudspeaker
S88
Yes
SL91
No
Alert types
S88
Vibration; Downloadable polyphonic, MP3 ringtones, composer
SL91
Vibration; Downloadable polyphonic, MP3 ringtones
3.5mm jack
S88
No
SL91
No
Other
S88
3D surrounding sound
SL91
-
WLAN
S88
No
SL91
No
Bluetooth
S88
Yes
SL91
Yes
Positioning
S88
No
SL91
No
Radio
S88
No
SL91
Stereo FM radio, RDS
USB
S88
Proprietary
SL91
2.0
Sensors
S88
SL91
Messaging
S88
SMS, MMS
SL91
SMS, MMS, Email
Browser
S88
WAP 2.0/xHTML
SL91
WAP 2.0/xHTML
Games
S88
Yes + downloadable
SL91
Yes + downloadable
Java
S88
Yes, MIDP 2.0
SL91
Yes, MIDP 2.0
Other
S88
MP3/AAC player Predictive text input Voice memo Stopwatch Organizer
SL91
MP3/AAC/eAAC+/XMF player Predictive text input Reminder Organizer
Type
S88
Removable Li-Ion 920 mAh battery
SL91
Removable Li-Ion 950 mAh battery
Stand-by
S88
Up to 110 h
SL91
Up to 310 h
Talk time
S88
Up to 3 h 15 min
SL91
Up to 3 h 15 min
Colors
S88
Cosmic Black, Astral White
SL91
Magic Black