Screen size
3 (2025)Winner: 6.5"
OT 155—
Quick verdict
3 (2025) leads the measured specs 17-1.
Measured wins
3 (2025)
17
spec wins
Overall winner
Ties
1
equal specs
OT 155
1
spec wins
Screen size
Technology
3 (2025)
GSM / HSPA / LTE
OT 155
GSM
2G bands
3 (2025)
GSM 850 / 900 / 1800 / 1900
OT 155
GSM 900 / 1800
3G bands
3 (2025)
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
OT 155
-
4G bands
3 (2025)
LTE
OT 155
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
-
Speed
3 (2025)
HSPA, LTE
OT 155
-
GPRS
3 (2025)
-
OT 155
EDGE
3 (2025)
-
OT 155
No
Announced
3 (2025)
2025, May 21
OT 155
2004, Q1
Status
3 (2025)
Available. Released 2025, June
OT 155
Discontinued
Dimensions
3 (2025)
164.4 x 75.8 x 8.8 mm (6.47 x 2.98 x 0.35 in)
OT 155
100 x 46 x 21 mm (3.94 x 1.81 x 0.83 in)
Weight
3 (2025)
185 g (6.53 oz)
OT 155
85 g (3.00 oz)
Build
3 (2025)
Glass front, plastic back, plastic frame
OT 155
-
SIM
3 (2025)
Nano-SIM + Nano-SIM
OT 155
Mini-SIM
Type
3 (2025)
IPS LCD, 400 nits
OT 155
Grayscale graphic
Size
3 (2025)
6.52 inches, 102.6 cm2 (~82.4% screen-to-body ratio)
OT 155
Resolution
3 (2025)
576 x 1280 pixels, 20:9 ratio (~215 ppi density)
OT 155
101 x 65 pixels
Other
3 (2025)
-
OT 155
Downloadable logos
OS
3 (2025)
Android 15 (Go edition)
OT 155
-
Chipset
3 (2025)
Unisoc SC9863A1 (22 nm)
OT 155
-
CPU
3 (2025)
Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
OT 155
-
GPU
3 (2025)
IMG8322
OT 155
-
Card slot
3 (2025)
microSDXC
OT 155
No
Internal
3 (2025)
64GB 3GB RAM, 128GB 4GB RAM
OT 155
-
Other
3 (2025)
eMMC 5.1
OT 155
-
Phonebook
3 (2025)
-
OT 155
SIM Only
Call records
3 (2025)
-
OT 155
10 dialed, 10 received, 10 missed calls
Single
3 (2025)
8 MP, f/1.8, (wide), 1/4.0", 1.12µm, AF or 13 MP, AF (region dependent)
OT 155
-
Features
3 (2025)
LED flash
OT 155
-
Video
3 (2025)
1080p@30fps
OT 155
-
Single
3 (2025)
5 MP, f/2.2, (wide), 1/5.0", 1.12µm
OT 155
-
Video
3 (2025)
Yes
OT 155
-
Loudspeaker
3 (2025)
Yes
OT 155
No
3.5mm jack
3 (2025)
Yes
OT 155
No
Alert types
3 (2025)
-
OT 155
Vibration; Downloadable polyphonic ringtones
WLAN
3 (2025)
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
OT 155
No
Bluetooth
3 (2025)
4.2, A2DP
OT 155
No
Positioning
3 (2025)
GPS, GLONASS, GALILEO, BDS
OT 155
No
NFC
3 (2025)
No
OT 155
-
Radio
3 (2025)
Unspecified
OT 155
No
USB
3 (2025)
USB Type-C 2.0, OTG
OT 155
Sensors
3 (2025)
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
OT 155
Messaging
3 (2025)
-
OT 155
SMS, EMS
Browser
3 (2025)
-
OT 155
Games
3 (2025)
-
OT 155
Bricks, Snake
Java
3 (2025)
-
OT 155
No
Other
3 (2025)
-
OT 155
Predictive text input Calculator Currency convertor
Type
3 (2025)
5010 mAh
OT 155
Removable Li-Ion battery
Charging
3 (2025)
10W wired
OT 155
-
Stand-by
3 (2025)
-
OT 155
Up to 220 h
Talk time
3 (2025)
-
OT 155
Up to 4 h 30 min
Colors
3 (2025)
Space Gray, Teal Blue
OT 155
Models
3 (2025)
T451H
OT 155
-
Other
3 (2025)
-
OT 155
No