TL;DR: The NanoPhone is a fully functional, credit card-sized smartphone that’s now just $99.97 (reg. $199.99) until March 16 at 11:59 p.m.

Ever wished you could carry a backup phone without feeling like you’re lugging around a brick? It would def come in handy for things like weddings or nights out at the bar when you don’t want to stash it in your pocket. Well, friends, the NanoPhone is a credit card-sized smartphone that’s so compact, it’ll have people doing double takes when you pull it out.

It may be small, but this isn’t some novelty gadget—it’s a fully functional 4G smartphone. With dual SIM support, Wi-Fi, voice and video calls, and even a front and rear camera, the NanoPhone is a lightweight device for travel, nights out, or as a reliable backup phone. And for a limited time, it’s just $99.97 (reg. $199.99) through March 16 at 11:59 p.m.—no coupon needed.

Despite its tiny footprint, the NanoPhone handles essential tasks effortlessly. Need to make calls, send messages, browse the web, or check WhatsApp and Instagram? No problem. The 3.0-inch HD touchscreen keeps everything accessible, and with 4G and Wi-Fi connectivity, you’ll always be just a tap away from your contacts, notifications, and social feeds.

Even better, it supports dual SIM cards, so you can run two numbers on one device—ideal for separating work and personal calls or keeping an international SIM for travel. And yes, it even has cameras for quick snapshots and video chats.

Sometimes, carrying your full-sized smartphone just isn’t practical. Maybe you’re at a concert or sporting event and don’t want to risk losing your expensive phone. Or perhaps you need a backup device for emergencies that won’t take up much space.

And it’s also a great conversation starter. People will gawk at how tiny and functional it is, making it a fun and useful gadget to have on hand.

For just two days, you can snag this ultra-portable NanoPhone smartphone for only $99.97 (reg. $199.99) through March 16 at 11:59 p.m.

StackSocial prices subject to change.