Two Windows Phone 8.1 phone models upgradeable to Windows 10 are available from Microsoft!

Two Microsoft Windows Phone 8.1 smartphone models that support free upgrade to Windows 10 are now in stock at Iosys Akiba Chuodori store.

The lineup includes the mid-range "Lumia 640 LTE Dual SIM" model with Snapdragon 400 (clock speed: 1.2GHz/quad-core) and 5-inch display (1,280 x 720 pixels), and the Snapdragon 200 (clock speed: 1.2GHz/dual-core) and 4-inch display (800 x 480 pixels). Dual Core) and a low-end model "Lumia 430 Dual SIM" with a 4-inch display ( 800 x 480 pixels ).




The "Lumia 640 LTE Dual SIM" and "Lumia 430 Dual SIM" are dual SIM-enabled smartphones with Windows Phone 8.1 OS and, as mentioned above, support a free upgrade to Windows 10.

The main specifications of the "Lumia 640 LTE Dual SIM" are: Windows Phone 8.1 OS (free upgrade to Windows 10 supported), Qualcomm "Snapdragon 400" CPU (operating clock: 1.2GHz/quad-core), 5-inch IPS LCD display , and a 5-inch LCD screen .The display is a 5-inch IPS LCD display (1,280 x 720 pixels).Memory is 1GB and internal storage is 8GB. Other features include wireless LAN (IEEE 802.11b/g/n), front (900,000 pixel)/rear (8 megapixel) camera, microSD card slot (up to 128GB), Bluetooh 4.0, and GPS. Communication systems supported are LTE (1/2/3/4/5/7/8/12/17/20/28/38/40/41), WCDMA (1/2/4/5/8), and GSM (850/900/1800/1900MHz). The in-stock models are available in black, white, orange, and cyan.

Body size is 72.2 (W) x 141.3 (D) x 8.8 (H) mm, and weight is 145 g.


The main specifications of the "Lumia 430 Dual SIM" are: the OS is Windows Phone 8.1 (free upgrade to Windows 10 supported); CPU is Qualcomm " The CPU is Qualcomm "Snapdragon 200" (clock speed: 1.2GHz/dual-core). The display is a 4-inch LCD display (800 x 480 pixels). Other features include wireless LAN (IEEE 802.11b/g/n), front (300,000 pixel)/rear (2 megapixel) camera, microSD card slot (up to 128GB), Bluetooh 4.0, and GPS. Supported communication systems are WCDMA (1/8) and GSM (850/900/1800/1900MHz). The in-stock model comes in two colors: black and orange.

The device measures 63.2 (W) x 120.5 (D) x 10.6 (H) mm and weighs 127.9 g.

The price is as follows

Lumia 640 LTE Dual SIM"
39,800 yen (including tax); IOSYS Akiba Chuodori store

"Lumia 430 Dual SIM"
22,800 yen (including tax); IOSYS Akiba Chuodori store

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