The Suunto Spartan Ultra ($849) is the latest entry into the market of high-end watches for serious athletes. The Spartan Ultra comes with a powerful battery and a big display, and it manages to be both comfortable and durable, even when you’re swimming or diving. However, the watch is missing a number of features that you’ll find on less expensive rivals, including the Polar M600 and Garmin fenix 3.

Design

The Spartan Ultra is a big watch — 1.97 inches in diameter, 0.67 inches thick and 2.58 ounces in weight. It’s heavier than the Polar M600 (2.3 ounces) but lighter than the Garmin fenix 3 (3 ounces). However, the Spartan’s 320 x 300-pixel display is larger than those on both rival watches.
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