O2 XDA Flame vs HTC Desire 728

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

3.6 inches
5.5 inches

Resolution:

640 x 480 pixels, 222 PPI
1280 x 720 pixels, 267 PPI

Technology:

TFT

Screen-to-body:

43.10 %
67.91 %

Colors:

262 144

Touchscreen:

Resistive
Capacitive, Multi-touch

Features:

Ambient light sensor, Proximity sensor

Hardware

System chip:

MediaTek MT6753

Processor:

Single core, 520 MHz, Intel XScale PXA270
Octa-core, 1300 MHz, ARM Cortex-A53, 64-bit

GPU:

Nvidia GeForce 5500
Mali-T720 MP3

RAM:

0.1GB
2GB

ROM:

64 MB

Internal storage:

16GB

Storage expansion:

microSD
microSDXC up to 2000 GB

Device type:

Smartphone
Smartphone

OS:

Windows Mobile Professional (5.0)
Android (5.1 Lollipop)

Battery

Capacity:

1620 mAh
2800 mAh

Type:

Li - Ion, User replaceable
User replaceable

Camera

Rear:

Single camera
Single camera

Main camera:

2 MP (Autofocus)
13 MP (Autofocus, BSI sensor)

Video recording:

Yes
1920x1080 (Full HD)

Features:

Video calling
Video calling

Front:

Yes
5 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

4.96 x 2.91 x 0.68 inches (126 x 74 x 17.5 mm)
6.22 x 3.06 x 0.31 inches (157.9 x 77.8 x 7.87 mm)

Weight:

6.70 oz (190.0 g)
5.40 oz (153.0 g)

Features:

Stylus, Soft keys, Notification light

Keys:

Right: Volume control, Lock/Unlock key

Cellular

LTE (FDD):

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900)

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)

UMTS:

Bands 1(2100)
Bands 5(850), 8(900), 2(1900), 1(2100)

Data Speed:

UMTS
LTE Cat 4 (150/50 Mbit/s)

Dual SIM:

Yes

SIM type:

Nano SIM

Multimedia

Headphones:

2.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker

Features:

Album art cover, Background playback

Screen mirroring:

TV-out
Wireless screen share

Radio:

FM, RDS

Connectivity & Features

Bluetooth:

2.0, EDR
4.1

Wi-Fi:

802.11 b, g
802.11 b, g, n

USB:

miniUSB
microUSB, USB 2.0

Features:

Charging
Mass storage device, Charging

Location:

GPS, A-GPS, Glonass

Sensors:

Accelerometer, Compass

Other:

Computer sync, Infrared, VoIP
Tethering, Computer sync, OTA sync

Phone features

Notifications:

Music ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Phone profiles, Speakerphone
Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone

Other features:

Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval:

Date approved:

Apr 03, 2007

FCC ID value:

PJO3600

Measured SAR:

Head:

0.46 W/kg

Measured in:

1900 MHz

Body:

0.34 W/kg

Measured in:

1900 MHz

Availability

Officially announced:

Sep 06, 2015
FCC OKs Cingular\'s purchase of AT&T Wireless