When choosing a dual-SIM smartphone, it’s important to select a model that suits your purpose and usage.
To avoid future regrets, it’s crucial to understand beforehand how many eSIMs the phone supports.
Furthermore, understanding the pricing plans and features of each mobile carrier will help you use your phone more cost-effectively.
Key points for choosing a smartphone
| Checklist | Details |
|---|---|
| Supported Bands (Frequency Bands) | Does it support the communication bands of the carrier you want to use? |
| Number and Type of SIM Slots | 2 nanoSIMs or nanoSIM + eSIM, etc. |
| DSDS or DSDA | Is simultaneous use of standby and calling necessary? |
| OS and specifications | Android devices such as Pixel, Sony, and Xiaomi, as well as iPhones from model 13 onwards, can use eSIM in conjunction with Android. |
| Battery capacity | Dual SIMs increase standby time, so storage capacity is also important. |
Examples of popular dual-SIM smartphones (as of 2025)
| Model | Features |
|---|---|
| iPhone 13 and later | nanoSIM + eSIM, DSDS compatible, highly reliable. |
| Google Pixel 7 / 8 | nanoSIM + eSIM, simple UI, high-performance camera. |
| Xperia 1 V / 5 V | Wide range of domestic bands supported, made by a Japanese manufacturer. |
| Xiaomi Redmi Note 13 Pro | Affordable, high-performance models available, including models that support two physical SIM cards. |
| ASUS Zenfone series | It also supports full DSDA, making it suitable for serious use with two lines. |
[Additional Information] Dual SIM Type
| Type | Description | Benefits | Points to Note |
|---|---|---|---|
| DSDS（DSDS (Dual SIM Dual Standby) | Allows two SIMs to be in standby mode, but calls can only be made from one SIM at a time. | Convenient for general usage. | Data communication is limited to one SIM only. |
| DSDA (Dual SIM Dual Active) | Simultaneous calls possible (high functionality) | Simultaneous calls possible. | Common in the higher price range. |
| eSIM + Physical SIM | Combination of eSIM and nanoSIM | Common in new iPhones and Pixels | Requires eSIM support. |
