Tech Specs

What goes into the making of each Circle device, you ask? A ton of great stuff. We're proud of Circle and excited to share every single piece of smartness that went into this brilliant device.

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Circle was designed with simplicity in mind. Right out of the box, Circle stands on its own as a piece of art. A beautiful product that fits seamlessly into your home, ready to work for your family.

Circle — Simple.


Pairs wirelessly with your router with instant device recognition. No software per device or monthly subscription required. No complicated series of steps involved. Just an iOS app and that’s it.

Circle — Smart.


Circle is incredibly secure. It uses end-to-end encryption for your data so it’s safe. Circle also has a battery inside so it can’t just be turned off by one of your kids. Yup, we thought of everything :)

Circle — Secure.


Circle schematics.
  • Weight & Dimensions
    Product Width: 3.25"
    Product Depth: 3.25"
    Product Height: 3.25"
    Product Weight: 1.25 lbs
  • Connectivity
    2.4GHz Wi-Fi (802.11 b/g/n)
    Wired 10/100 Ethernet
    TLS Encrypted
  • Power & Battery
    100-240v power supply
    Rechargeable lithium-ion battery
    Charges via USB
  • Software Requirements
    An iOS device (iPhone, iPad, iPod Touch)
    iOS 9 or later or Android device
    (Jelly Bean or later)
Our Secret Sauce

Our secret sauce.

So what special ingredient makes Circle work so seamlessly? Well, Circle uses a technique called, “ARP spoofing”, which sounds alarming, right? And it’s true, ARP spoofing can be used by “black hats” to compromise network security. But the technique can also be used for good, like with Circle. Circle uses ARP spoofing to automatically monitor all traffic on the home network, without the need for any special configuration. Pretty cool huh?!

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We love privacy.

One unique aspect of Circle is that your data lives on the device. That means that all your surfing history for your family stays stored on your Circle and isn’t up in the cloud somewhere. We don’t sell this data, we don’t mine it; heck, we don’t even access it except to relay it to your iOS app. Circle is proud to be in full compliance with COPPA standards. It’s your data, it should belong to you.

Circle — We love privacy

How it works.

Circle isn’t a router, but does pair wirelessly with yours. Circle is designed to work with a single network and manage all the website requests from all the devices in the home. From there each user’s settings kick in. If a request is allowed, all the web traffic goes directly from the home Wi-Fi to the device. Guest networks and subnetworks of your home Wi-Fi are not additionally managed.

Check your router's compatibility

Circle — How it works

60Mbps or faster?

Need a fast connection? Use Circle’s Ethernet cable to plug directly into your home router. That way, Circle can work without slowing things down.

Circle with fast connections

Built with teens in mind.

Worried about Circle being unplugged? Not to worry. Circle has a battery. Couldn’t they just remove it from the home? Or just plain turn it off? Not without you getting a notification right away. As you can see, we’ve got you covered parents.

Circle — Built with teens in mind

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Circle Go

Manage mobile devices everywhere with Circle Go®.

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