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TAG Heuer’s New Smaller Smartwatch Is Perfect for Fitness Buffs

The 42mm Connected Calibre E4 is the right size, and has the sports technology you’ll need.

The Connected Calibre E4 in a 42mm for $1,800.

The Connected Calibre E4 in a 42mm for $1,800.

Photographer: Sarah Anne Ward for Bloomberg Businessweek

TAG Heuer released its first smartwatch in 2015 with the goal of serving the same elevated aesthetics found in its mechanical timepieces. Since then the sports watch behemoth has offered updated versions and apps catering to active types, particularly a golf tool that provides course maps, distance measurements, and scorekeeping. On Feb. 10, Chief Executive Officer Frédéric Arnault ( son of Bernard Arnault, the CEO of parent company LVMH) announced the Connected Calibre E4 in two sizes: a 45-millimeter starting at $2,050 and a 42mm for $1,800 (pictured). The smaller size is for those looking to make a more modest statement—though it doesn’t offer the battery life of the 45mm, which can go a full day (including five hours of golf tracking) before needing a charge.

• The ruler in this space is the Apple Watch, which runs on the brand’s intuitive iOS, has excellent screen resolution, and is available in 41mm or 45mm sizes. It comes in a number of case metals and an almost endless choice of straps. Hermès models (as much as $1,759) allow you to be as luxurious as you like.