The Motorola Moto 360 smartwatch will cost $249 (£150), information accidentally published by US retailer Best Buy claims.
For context, the LG G Watch costs $229 and the Samsung Gear Live is priced at $199; both of these watches also run Google's Android Wear operating system.
First shown off at Google’s I/O conference in June, the Moto 360 is the Android Wear smartwatch which has gained more attention and positive acclaim than any other - mostly for its attractive design and round screen.
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The Moto 360 will feature a heart rate monitor and pedometer to track your health and fitness; it is waterproof to a depth of 3.3 feet and can be submerged for up to 30 minutes, the Best Buy listing claimed, before it was removed.
There will also be an ambient light sensor to automatically adjust screen brightness - a feature sorely missing from previous smartwatches like the Samsung Gear 2 and LG G Watch. Inside there is 512MB of RAM and a TI processor, plus Bluetooth and wireless charging.
A round screen will help make the Moto 360 look more like a traditional watch than its smart rivals, but at 45mm across and 10mm deep, the Motorola is a very large watch. Motorola is holding a press event in Chicago on 4 September, where it is expected to put the Moto 360 on sale, as well as announce updates to the popular Moto G and Moto X smartphones.
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The IFA technology trade show kicks off in Berlin the same week, and Motorola is busy organising press briefings there as well - Mobile Choice will be at IFA, where we hope to get our hands on the Moto 360.