Screen size
Go Flip 4Winner: 2.8"+36%
OT-6601.8"
Quick verdict
Go Flip 4 leads the measured specs 9-3.
Measured wins
Go Flip 4
9
spec wins
Overall winner
Ties
3
equal specs
OT-660
3
spec wins
Screen size
Technology
Go Flip 4
GSM / HSPA / LTE
OT-660
GSM
2G bands
Go Flip 4
GSM 850 / 1900
OT-660
GSM 900 / 1800 , GSM 850 / 1900
3G bands
Go Flip 4
HSDPA 850 / 1700(AWS) / 1900
OT-660
-
4G bands
Go Flip 4
2, 4, 5, 12, 25, 26, 41, 66, 71
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
equal specs5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
OT-660
-
Speed
Go Flip 4
HSPA, LTE
OT-660
-
GPRS
Go Flip 4
-
OT-660
Class 10
EDGE
Go Flip 4
-
OT-660
No
Announced
Go Flip 4
2021, September
OT-660
2009, June. Released 2009
Status
Go Flip 4
Available. Released 2021, September
OT-660
Discontinued
Dimensions
Go Flip 4
107.3 x 55.6 x 19.9 mm (4.22 x 2.19 x 0.78 in)
OT-660
94.3 x 46.2 x 19.4 mm (3.71 x 1.82 x 0.76 in)
Weight
Go Flip 4
133 g (4.69 oz)
OT-660
82 g (2.89 oz)
SIM
Go Flip 4
Nano-SIM
OT-660
Mini-SIM
Type
Go Flip 4
TN TFT LCD
OT-660
TFT, 65K colors
Size
Go Flip 4
2.8 inches, 24.3 cm2 (~40.7% screen-to-body ratio)
OT-660
1.8 inches, 10.2 cm2 (~23.4% screen-to-body ratio)
Resolution
Go Flip 4
240 x 320 pixels, 4:3 ratio (~143 ppi density)
OT-660
128 x 160 pixels (~114 ppi density)
Other
Go Flip 4
Second external TN TFT display, 1.44 inches, 128 x 128 pixels
OT-660
-
OS
Go Flip 4
KaiOS 3.0
OT-660
-
Chipset
Go Flip 4
QM215 Snapdragon 215 (28 nm)
OT-660
-
CPU
Go Flip 4
Quad-core 1.3 GHz Cortex-A53
OT-660
-
GPU
Go Flip 4
Adreno 308
OT-660
-
Card slot
Go Flip 4
microSDHC (dedicated slot)
OT-660
microSD (dedicated slot)
Internal
Go Flip 4
4GB 512MB RAM
OT-660
10MB
Phonebook
Go Flip 4
-
OT-660
800 entries
Call records
Go Flip 4
-
OT-660
20 dialed, 20 received, 20 missed calls
Single
Go Flip 4
2 MP
OT-660
1.3 MP
Video
Go Flip 4
480p@30fps
OT-660
Yes
Other
Go Flip 4
No
OT-660
No
Loudspeaker
Go Flip 4
Yes
OT-660
Yes
3.5mm jack
Go Flip 4
Yes
OT-660
No
WLAN
Go Flip 4
Wi-Fi 802.11 b/g/n, hotspot
OT-660
No
Bluetooth
Go Flip 4
4.2, A2DP
OT-660
2.0, A2DP
Positioning
Go Flip 4
GPS
OT-660
No
NFC
Go Flip 4
No
OT-660
-
Radio
Go Flip 4
FM radio
OT-660
Stereo FM radio, RDS
USB
Go Flip 4
USB Type-C 2.0
OT-660
microUSB 2.0
Sensors
Go Flip 4
OT-660
Messaging
Go Flip 4
-
OT-660
SMS, MMS
Browser
Go Flip 4
-
OT-660
WAP 2.0/xHTML
Games
Go Flip 4
-
OT-660
2
Java
Go Flip 4
-
OT-660
Yes, MIDP 2.0
Other
Go Flip 4
-
OT-660
MP3/AAC+ player Organizer Predictive text input
Type
Go Flip 4
Li-Ion 1850 mAh
OT-660
Removable Li-Ion 750 mAh battery
Stand-by
Go Flip 4
-
OT-660
Up to 400 h
Talk time
Go Flip 4
-
OT-660
Up to 10 h
Music play
Go Flip 4
-
OT-660
Up to 15 h
Colors
Go Flip 4
Midnight Blue
OT-660
Dark Chrome, Pink Chrome
Models
Go Flip 4
4056W
OT-660
-
SAR
Go Flip 4
0.78 W/kg (head) 1.27 W/kg (body)
OT-660
1.16 W/kg (head) 1.13 W/kg (body)
Price
Go Flip 4
About 120 EUR
OT-660
About 50 EUR
SAR EU
Go Flip 4
-
OT-660
1.00 W/kg (head)