Brand AllCall
Model Rio S Dual SIM LTE
Released 2017 Aug
Announced 2017 Aug 1
Hardware Designer Shenzhen AllCall Technology Co.,Ltd
Manufacturer Shenzhen AllCall Technology Co.,Ltd
General Extras 

Haptic touch feedback

Device Category 

Smartphone

Width 77 mm
Height 155.8 mm
Depth 9.6 mm
Dimensions 3.03×6.13×0.38 inches
Mass 220 g
7.76 ounces
Platform 

Android

Operating System

Google Android 7.0 (Nougat)

CPU Clock 1300 MHz
CPU

MediaTek MT6737, 2016, 64 bit, quad-core, 28 nm, ARM Mali-T720 GPU

RAM Type 

LPDDR3 SDRAM

RAM Capacity (converted) 2.00 GiB RAM
Non-volatile Memory Capacity (converted) 16.0 GB ROM
Display Diagonal 139.7 mm
5.5 inch
Resolution 720×1280
Horizontal Full Bezel Width 8.51 mm
Display Area Utilization 69.5%
Pixel Density 267 PPI
Display Type 

Color IPS TFT LCD display

Display Subtype 

Yes

Number of Display Scales 16.8M
Scratch Resistant Screen 

Arc Glass

Graphical Controller ARM Mali-T720MP1
GPU Clock 650 MHz
A/V Out  No
Microphone(s) 

mono

Loudpeaker(s):  

mono

Audio Output:  

3.5mm

Supported Cellular Bands 

GSM850
, GSM900
, GSM1800
, GSM1900
, UMTS2100 (B1)
, UMTS900 (B8)
, LTE2100 (B1)
, LTE1800 (B3)
, LTE2600 (B7)
, LTE800 (B20) bands

Supported Cellular Data Links 

GPRS
, EDGE
, UMTS
, HSUPA
, HSDPA
, HSPA+ 21.1
, LTE
, LTE 50/25
, LTE 100/50
, LTE 150/50 data links

SIM Card Slot 

Nano-SIM (4FF)

Complementary Phone Services 

Voice transmission
, Voice speaker
, Vibrate
, Speakerphone

Dual Cellular Network Operation 

Dual standby operation

Sec. Supported Cellular Networks:  

GSM850
, GSM900
, GSM1800
, GSM1900

Sec. Supported Cellular Data Links:  

GPRS
, EDGE

Sec. SIM Card Slot 

Nano-SIM (4FF)

Touchscreen Type 

Capacitive multi-touch screen

Expansion Interfaces 

TransFlash
, microSD
, microSDHC

USB 

USB 2.0

USB HS (480 Mbps)

USB Services 

USB charging
, USB Host
, USB OTG 1.0
, USB OTG 1.3
, USB PD

USB Connector 

USB Micro-B (Micro-USB)

Bluetooth 

Bluetooth 4.0

Wireless LAN 

802.11b
, 802.11g
, 802.11n

Wireless Services 

Wi-Fi Tethering

FM Radio Receiver 

FM radio (88-108 MHz)

Complementary GPS Services 

Geotagging
, QuickGPS

Camera Placement 

Rear

Camera Image Sensor 

CMOS

Number of effective pixels 8.1 MP camera
Zoom 1.0 x optical zoom
Focus 

CD AF

30 fps
Flash 

dual LED

Camera Extra Functions 

HDR photo
, Touch focus
, Macro mode
, Panorama Photo
, Face detection
, Face retouch

Aux. Camera Image Sensor 

Yes

Auxiliary Camera Resolution 1.9 MP aux. camera
Aux. 2 Camera Image Sensor  No
Aux. 3 Camera Image Sensor  No
Aux.4 Camera Image Sensor  No
Secondary Camera Placement 

Front

Secondary Camera Sensor 

CMOS

Secondary Number of pixels 1.9 MP 2nd camera
30 fps
Secondary Camera Extra Functions 

Face detection
, Face retouch

Sec. Aux. Cam. Image Sensor  No
Built-in compass 

Yes

Built-in accelerometer 

Yes

Additional sensors 

Light sensor
, Proximity sensor

Protection from solid materials 

Yes

Protection from liquids 

Yes

Battery 

Li-ion polymer (LiPo)

built-in

1-cell
Nominal Battery Capacity 3200 mAh battery
Market Countries 

China
, HK
, Russia
, Romania
, Spain

Market Regions 

Africa
, Asia
, Europe
, Southeast Asia

Data Integrity 

Final