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Legacy TD-LTE US 3705AS

Legacy TD-LTE US 3705AS

from Coolpad
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Overview & Features

Brand
Coolpad
Brief
Boost Mobile variant of Coolpad Legacy with CDMA support
Model
Legacy TD-LTE US 3705AS
Codename
Coolpad CP3705A
Released
2019 Jun 18
Announced
2019 Jun 18
General Extras
Haptic touch feedback
Hardware Designer
Yulong Computer

Technical Specifications

Display

Pixel Size
0.06687 mm/pixel
Resolution
1080x2160
2332800 pixels
Display Area
10432.9 square millimeter
Display Type
Color IPS TFT LCD
display
Display Width
72.22 mm
Pixel Density
380 PPI
Display Height
144.45 mm
Display Diagonal
161.5 mm
Display Color Depth
24 bit/pixel
Display Illumination
LED
Display Subpixel Scheme
RGB Matrix (3 subpixels)
Display Area Utilization
78.2%
Number of Display Scales
16.8M
Scratch Resistant Screen
Corning Gorilla Glass 3
Display Dynamic Range Depth
8 bit/pixel
Horizontal Full Bezel Width
8.28 mm
Display Light Reflection Mode
transflective

Power Supply

Battery
Lithium-ion
built-in
1-cell
Talk Time
31.0 hours
Standby Time
980 hours
Average Current Talking
128 mA
Average Standby Current
4 mA
Nominal Battery Capacity
3980 mAh battery
Nominal Cell Capacity (1st cell)
3980 mAh cell

Sound Playing

Audio Output
3.5mm
Loudspeaker(s)
mono

Cellular Phone

SAR (body)
1.280 W/kg
US standard (max. 1.6 W/kg @ 1g)
measurement method
SAR (head)
0.870 W/kg
US standard (max. 1.6 W/kg @ 1g)
measurement method
SIM Card Slot
Nano-SIM (4FF)
Call Alert Sound
128-chord melody
Cellular Antenna
Internal antenna
Cellular Controller
Qualcomm SDM450
Supported Cellular Bands
GSM 850MHz (B5)
GSM 1900MHz (PCS, B2)
UMTS 1900MHz (Band II, PCS)
UMTS 850MHz (Band V, CLR)
CDMA 800MHz (BC0, 850)
CDMA 1900MHz (BC1/BC14, PCS)
CDMA 800MHz (BC10)
LTE 1900 MHz (Band 2, PCS)
LTE 1700/2100 MHz (Band 4, AWS)
LTE 850 MHz (Band 5)
LTE 700 MHz (Band 12)
LTE 700 MHz (Band 13)
LTE 1900 MHz (Band 25)
LTE 850 MHz (Band 26)
TD-LTE 2500 MHz (Band XLI)
bands
Complementary Phone Services
Voice transmission
Voice speaker
Vibrating Alert
Speakerphone
ANC
HD Voice
Hearing Aid Compatibility (HAC)
M4
T4
Supported Cellular Data Links
GPRS (Class unspecified)
GPRS Class 12
GPRS Multi-slot Class 33
EDGE (Class unspecified)
EDGE Multi-slot Class 33
UMTS 384 kbps (W-CDMA)
HSUPA (Cat. unspecified)
HSUPA 5.76 Mbps (Cat. 6)
HSDPA (Cat. unspecified)
HSPA+ 21.1 Mbps (Cat. 18)
DC-HSDPA 42.2 Mbps (Cat. 24)
cdmaOne (IS-95)
CDMA2000 1xRTT (IS-2000)
CDMA2000 1xEV-DO Rel. 0
CDMA2000 1xEV-DO Revision A
LTE (Cat. unspecified)
LTE 100 Mbps / 50 Mbps (Cat. 3)
LTE 150 Mbps / 50 Mbps (Cat. 4)
LTE 300 Mbps / 50 Mbps (Cat. 6)
data links

Audio Subsystem

Audio Channel(s)
stereo

Sound Recording

Microphone(s)
stereo

Auxiliary Camera

Aux. Camera Image Sensor
CMOS
Aux. Camera Number of Pixels
4.9 MP aux. cam

Built-in Sensors

Built-in compass
Yes
Additional sensors
Fingerprint sensor
Light intensity sensor
Proximity sensor
Built-in gyroscope
Yes
Built-in accelerometer
3D (3-axis)
accelerometer

Operative Memory

RAM Type
mobile (LP) DDR3 SDRAM
933 MHz
RAM Capacity
3072 MiB RAM

Ingress Protection

Protection from liquids
Yes
Protection from solid materials
Yes

Control Peripherals

Touchscreen Type
Capacitive multi-touch sensing
screen
Touchscreen Simultaneous Touch Points
Yes

Graphical Subsystem

Frame Buffer
8 KiB
Graphical Controller
Qualcomm Adreno 506
Dedicated Graphics Memory
0.125 MiB

Non-volatile Memory

Non-volatile Memory Type
Flash EEPROM
Non-volatile Memory Capacity
30518 MiB non-volatile
21500 MiB free user storage
Non-volatile Memory Interface
eMMC 5.1

Physical Attributes

Mass
169.8 g
Depth
8.4 mm
Width
80.5 mm
Height
165.8 mm
Bounding Volume
112.1 ccm

Multimedia Broadcast

FM Radio Receiver
No

Satellite Navigation

GPS Antenna
Internal antenna
Navigation Controller
Qualcomm SDM450
Supported GPS protocol(s)
GPS (NMEA 0183)
Complementary GPS Services
Simultaneous GPS (S-GPS)
Assisted GPS
Geotagging
QuickGPS
Supported GLONASS protocol(s)
L1OF

Software Environment

Platform
Google Android
Software Extras
Voice Command
Navigation software
Virtual Reality (VR) support
Intelligent personal assistant
Face Recognition
Operating System
Google Android 9.0 (Pie)

Audio/Video Interfaces

A/V Out
No

Auxiliary Camera No. 2

Aux. 2 Camera Image Sensor
No

Auxiliary Camera No. 3

Aux. 3 Camera Image Sensor
No

Auxiliary Camera No. 4

Aux. 4 Camera Focus
No
Aux. 4 Camera Image Sensor
No

Primary Camera System

Zoom
1.0 x optical zoom
Flash
single LED
Focus
Phase-Detection Autofocus (PD AF)
Video Recording
1920x1080 pixel
30 fps
Camera Placement
Rear
Camera Resolution
4608x3456 pixel
Camera Image Sensor
BSI CMOS
Camera Extra Functions
HDR photo
HDR video
Red-eye effect reduction
Slow motion video
Burst mode
Touch focus
Macro mode
Panorama Photo
Face detection
Face tagging
Smile detection
Face retouch
Recordable Image Formats
JPG
Recordable Video Formats
MPEG4
Number of effective pixels
15.9 MP camera

Geographical Attributes

Market Regions
North America (NA)
Mobile Operator
Boost Mobile US
Market Countries
USA

Secondary Camera System

Secondary Camera Sensor
BSI CMOS
Secondary Video Recording
1920x1080 pixel
30 fps
Secondary Camera Placement
Front
Secondary Camera Resolution
4160x3120 pixel
Secondary Camera Extra Functions
HDR photo
Panorama Photo
Face detection
Face tagging
Smile detection
Face retouch
Secondary Camera Number of pixels
13.0 MP sec. cam
Secondary Recordable Image Formats
JPG
Secondary Recordable Video Formats
MPEG4

Communication Interfaces

USB
USB 2.0
USB Hi-Speed (480 Mbps)
Bluetooth
Bluetooth 4.2
Internal antenna
USB Services
USB charging
USB fast charging
USB Host
USB On-The-Go 1.3
USB Power Delivery
Wireless LAN
IEEE 802.11a
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
Internal antenna
USB Connector
USB Type-C reversible
Wireless Services
Wi-Fi Direct
Wi-Fi Tethering
Bluetooth profiles
A2DP
A2DP with aptX codec
AVRCP
DIP
GAVDP
GOEP
HFP
HID
HSP
MAP
OPP
PAN
PBA
SPP
Expansion Interfaces
TransFlash
microSD
microSDHC
microSD Extended Capacity

Secondary Cellular Phone

Sec. Supported Cellular Networks
No
Sec. Supported Cellular Data Links
GPRS (Class unspecified)
EDGE (Class unspecified)

Secondary Auxiliary Camera

Sec. Aux. Cam. Image Sensor
No

Application processor, Chipset

CPU
Qualcomm Snapdragon 450 SDM450, 2017, 64 bit, octa-core, 14 nm, Qualcomm Adreno 506 GPU
CPU Clock
1800 MHz

Secondary Auxiliary Camera No. 2

Sec. Aux. 2 Cam. Image Sensor
No

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