Dual SIM is a useful feature on any smartphone — but is this something you get on the OnePlus 10 Pro? Available for $899 in the U.S., the OnePlus 10 Pro is a cheaper alternative to $1000 flagships like the iPhone 13 Pro and Galaxy S22+. And it offers that lower price while still retaining a load of flagship specs. The OnePlus 10 Pro has Android 12, a Snapdragon 8 Gen 1 processor, and a 120Hz AMOLED display (just to name a few of its highlights).

But that’s not to say the OnePlus 10 Pro is perfect. Every smartphone has to make compromises, especially when undercutting the competition by $100. The OnePlus 10 Pro doesn’t have a headphone jack, there’s no expandable storage, and the unlocked model lacks an IP68 water resistance rating. To some people, those things may be deal-breakers. To others, they’re smart compromises to make the 10 Pro a more affordable flagship.

Related: Is The OnePlus 10 Pro Waterproof? Everything You Need To Know

But those aren’t the only things the OnePlus 10 Pro is missing. Another absent feature is dual SIM support. Dual SIM allows a smartphone to simultaneously connect to two phone numbers/carriers — either through two SIM cards or with one SIM card and a built-in eSIM. It’s a useful tool if you’re traveling to another country, have separate personal and work numbers, or in any other situation where you need more than one phone number. Since the OnePlus 10 Pro doesn’t support dual SIM, it’s not capable of these things.

The OnePlus 10 Pro Supports One Nano-SIM

OnePlus 10 Pro

The only option for wireless service on the OnePlus 10 Pro is using a single nano-SIM card. Using the ejection tool that comes in the box, users can eject the SIM card tray on the bottom of the phone, insert their nano-SIM, and connect to their carrier. You’re free to remove and insert different SIM cards as needed, but there’s no way to have two SIMs connected to the OnePlus 10 Pro at once.

While dual SIM isn’t a critical feature for everyone, it is an area where the OnePlus 10 Pro lags behind its competition. Other smartphones like the iPhone 13, Galaxy S22, and Pixel 6 all have dual SIM. The OnePlus 10 Pro does not, and it’s not something that can be added with a future software update. Dual SIM may not be the most pressing issue that OnePlus needs to address for the inevitable OnePlus 11 Pro. But if the company’s looking for subtle ways to improve next year, dual SIM would be more than welcome on its spec sheet.