Screen size
Go Flip 4Winner: 2.8"
OT 531—
Quick verdict
Go Flip 4 leads the measured specs 13-1.
Measured wins
Go Flip 4
13
spec wins
Overall winner
Ties
1
equal specs
OT 531
1
spec wins
Screen size
Technology
Go Flip 4
GSM / HSPA / LTE
OT 531
GSM
2G bands
Go Flip 4
GSM 850 / 1900
OT 531
GSM 900 / 1800
3G bands
Go Flip 4
HSDPA 850 / 1700(AWS) / 1900
OT 531
-
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
5G support
equal specsNFC
3.5mm jack
SD card
Stereo speakers
OT 531
-
Speed
Go Flip 4
HSPA, LTE
OT 531
-
GPRS
Go Flip 4
-
OT 531
Class 8
EDGE
Go Flip 4
-
OT 531
No
Announced
Go Flip 4
2021, September
OT 531
2003, March
Status
Go Flip 4
Available. Released 2021, September
OT 531
Discontinued
Dimensions
Go Flip 4
107.3 x 55.6 x 19.9 mm (4.22 x 2.19 x 0.78 in)
OT 531
116 x 47 x 20 mm (4.57 x 1.85 x 0.79 in)
Weight
Go Flip 4
133 g (4.69 oz)
OT 531
95 g (3.35 oz)
SIM
Go Flip 4
Nano-SIM
OT 531
Mini-SIM
Type
Go Flip 4
TN TFT LCD
OT 531
CSTN, 4096 colors
Size
Go Flip 4
2.8 inches, 24.3 cm2 (~40.7% screen-to-body ratio)
OT 531
Resolution
Go Flip 4
240 x 320 pixels, 4:3 ratio (~143 ppi density)
OT 531
128 x 141 pixels
Other
Go Flip 4
Second external TN TFT display, 1.44 inches, 128 x 128 pixels
OT 531
Downloadable wallpapers Customizable softkeys
OS
Go Flip 4
KaiOS 3.0
OT 531
-
Chipset
Go Flip 4
QM215 Snapdragon 215 (28 nm)
OT 531
-
CPU
Go Flip 4
Quad-core 1.3 GHz Cortex-A53
OT 531
-
GPU
Go Flip 4
Adreno 308
OT 531
-
Card slot
Go Flip 4
microSDHC (dedicated slot)
OT 531
No
Internal
Go Flip 4
4GB 512MB RAM
OT 531
-
Phonebook
Go Flip 4
-
OT 531
255 x 6 fields
Call records
Go Flip 4
-
OT 531
10 dialed, 10 received, 10 missed calls
Other
Go Flip 4
-
OT 531
20 voice dial records 150 SMS messages SMS templates Detailed call logs
Single
Go Flip 4
2 MP
OT 531
-
Video
Go Flip 4
480p@30fps
OT 531
-
Other
Go Flip 4
No
OT 531
-
Loudspeaker
Go Flip 4
Yes
OT 531
Yes
3.5mm jack
Go Flip 4
Yes
OT 531
No
Alert types
Go Flip 4
-
OT 531
Vibration; Polyphonic(16) ringtones, composer
WLAN
Go Flip 4
Wi-Fi 802.11 b/g/n, hotspot
OT 531
No
Bluetooth
Go Flip 4
4.2, A2DP
OT 531
No
Positioning
Go Flip 4
GPS
OT 531
No
NFC
Go Flip 4
No
OT 531
-
Radio
Go Flip 4
FM radio
OT 531
No
USB
Go Flip 4
USB Type-C 2.0
OT 531
Infrared port
Go Flip 4
-
OT 531
Yes
Sensors
Go Flip 4
OT 531
Messaging
Go Flip 4
-
OT 531
SMS, EMS
Browser
Go Flip 4
-
OT 531
WAP 1.2.1 color image viewer (GIF, PNG, JPG)
Clock
Go Flip 4
-
OT 531
Yes
Alarm
Go Flip 4
-
OT 531
Yes
Games
Go Flip 4
-
OT 531
2 + downloadable
Java
Go Flip 4
-
OT 531
No
Other
Go Flip 4
-
OT 531
Business card exchange via IrDA Voice dial Voice memo Predictive text input Organizer Customizable front panel
Type
Go Flip 4
Li-Ion 1850 mAh
OT 531
Removable Li-Ion 900 mAh battery
Stand-by
Go Flip 4
-
OT 531
Up to 350 h
Talk time
Go Flip 4
-
OT 531
Up to 4 h
Colors
Go Flip 4
Midnight Blue
OT 531
3
Models
Go Flip 4
4056W
OT 531
-
SAR
Go Flip 4
0.78 W/kg (head) 1.27 W/kg (body)
OT 531
-
Price
Go Flip 4
About 120 EUR
OT 531
-
Other
Go Flip 4
-
OT 531
No