Can I combine 2 cellular connections on my dual SIM phone?

This article explains whether you can use both SIM cards on a dual SIM phone at the same time with Speedify, and what options are available to get faster upload and download speeds using your cellular connections.

How Dual SIM Phones Handle Data

Most dual SIM phones can only use one SIM card for a data connection at a time. This is because both SIM card slots typically share a single radio inside the device, so switching data between them is possible, but using both simultaneously for internet traffic is not.

This means Speedify cannot bond two 4G/5G cellular connections from the same dual SIM phone directly, since the phone's hardware only exposes one active data connection at a time.

What You Can Do Instead

Even with this hardware limitation, there are a few solid options for getting faster or more reliable internet with Speedify:

Option 1: Combine Wi-Fi and Cellular

On both Android and iOS, Speedify can bond your active 4G/5G cellular connection with a Wi-Fi network connection at the same time. This is the most straightforward way to combine two internet connections on a single phone, and it works on most devices without any special setup beyond installing Speedify.

Option 2: Use Pair & Share

Speedify's Pair & Share feature lets you share a 4G/5G cellular connection from one device with another device on the same local network, without the need for additional cables or adapters. This makes it possible for two Speedify users to pool their cellular connections across separate devices for combined bandwidth.

See What is Pair & Share? for full setup instructions.