Screen size
equal specsDallas2.4"
Rio2.4"
Quick verdict
Rio leads the measured specs 4-2.
Measured wins
Dallas
2
spec wins
Ties
5
equal specs
Rio
4
spec wins
Overall winner
Screen size
equal specsTechnology
Dallas
GSM
Rio
GSM
2G bands
Dallas
GSM 900 / 1800
Rio
GSM 900 / 1800
GPRS
Dallas
Yes
Rio
Class 12
EDGE
Dallas
No
Rio
Yes
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU 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
Announced
Dallas
2011
Rio
2011. Released 2011
Status
Dallas
Discontinued
Rio
Discontinued
Dimensions
Dallas
109 x 46 x 12.4 mm (4.29 x 1.81 x 0.49 in)
Rio
107 x 61 x 12 mm (4.21 x 2.40 x 0.47 in)
Weight
Dallas
80 g (2.82 oz)
Rio
90 g (3.17 oz)
SIM
Dallas
Mini-SIM
Rio
Mini-SIM
Other
Dallas
Flashlight
Rio
-
Keyboard
Dallas
-
Rio
QWERTY
Type
Dallas
TFT
Rio
TFT resistive touchscreen, 256K colors
Size
Dallas
2.4 inches, 17.8 cm2 (~35.6% screen-to-body ratio)
Rio
2.4 inches, 17.8 cm2 (~27.3% screen-to-body ratio)
Resolution
Dallas
240 x 320 pixels, 4:3 ratio (~167 ppi density)
Rio
320 x 240 pixels, 4:3 ratio (~167 ppi density)
Card slot
Dallas
microSDHC (dedicated slot)
Rio
microSDHC (dedicated slot)
Phonebook
Dallas
300 entries
Rio
Yes, Photocall
Call records
Dallas
Yes
Rio
Yes
Internal
Dallas
1.4MB
Rio
6MB
Single
Dallas
VGA
Rio
2 MP
Video
Dallas
No
Rio
Yes
Other
Dallas
No
Rio
No
Loudspeaker
Dallas
Yes
Rio
Yes
3.5mm jack
Dallas
-
Rio
Yes
WLAN
Dallas
No
Rio
No
Bluetooth
Dallas
2.0
Rio
Yes
Positioning
Dallas
No
Rio
No
Radio
Dallas
FM radio
Rio
FM radio
USB
Dallas
microUSB
Rio
miniUSB 2.0
Sensors
Dallas
Rio
Messaging
Dallas
SMS
Rio
SMS, MMS, Email, IM
Games
Dallas
No
Rio
Yes
Java
Dallas
No
Rio
Yes, MIDP 2.0
Other
Dallas
MP3 player Organizer Predictive text input
Rio
MP3/eAAC+ player MP4/H.263 player Organizer Voice memo Predictive text input
Type
Dallas
Removable Li-Ion battery
Rio
Removable Li-Ion battery
Stand-by
Dallas
Up to 240 h
Rio
Up to 480 h
Talk time
Dallas
Up to 5 h
Rio
Up to 8 h
Colors
Dallas
Black
Rio
Black, Pink