【Unreleased, New】Switch between 4 SIMs with your smartphone SIM CHANGER ⊿

The SIM CHANGER ⊿ was developed by Cerevo as a crowdfunding project on Makuake in May 2017, but it was not released for general sale.

The SIM CHANGER ⊿ is still the only product that allows you to switch between 4 SIM cards on a single smartphone. It is a rare item, with only 640 units provided to project backers.

By inserting a Bluetooth-equipped bridge card (developed by NTT Docomo) into your smartphone's SIM card slot and connecting to the SIM CHANGER ⊿ via Bluetooth, you can freely switch between SIM cards with different phone numbers and contracts.

SIM card switching is done through a dedicated app on your smartphone, allowing you to switch to a SIM card with cheaper data rates or unlimited calling. The SIM slots support both micro SIM and nano SIM card types.

It features a large 3,400mAh battery, providing approximately 30 days of continuous use on a single charge, making battery management easy.

[Specifications]
Manufacturer: Cerevo
Product Dimensions: 50.8 x 80 x 45.8mm
Weight: Approx. 100g
Number of SIM Slots: 2 nano SIM slots
2 micro SIM slots
Battery Capacity: 3,400mAh
Operating Time: Approx. 30 days
Charging Time: Approx. 4 hours
Bridge Card: Two types are available, one for iOS and one for Android.
This listing includes the Android version.
Price: ¥16,200 (Main unit + 1 bridge card)

The outer box shows signs of age and crushing due to home storage.
The device has been tested and is confirmed to be in normal working order.
Operation in my environment was confirmed without issues, as shown in the 4th photo.
I was able to insert two SIM cards and switch between them using the app.
Please check the manufacturer's website or contact them to confirm operation with your specific smartphone model, Android version, and other usage environment details.

Thank you.