The Heir Reinvents Casio, Rolex, and More as Sophisticated Smartwatches

The Heir is a clever way to turn traditional watches from iconic brands like Casio, Rolex, and others into feature-packed smartwatches—without changing the classic look that makes those timepieces so appealing. Instead of replacing your favorite watch with a full-screen wearable, this gadget focuses on adding modern tracking features while letting you keep the style and feel of a real mechanical or quartz watch.

Built-in movement sensors help track everyday health and fitness metrics, including steps taken, active time, calories burned, and distance covered. For anyone trying to stay on top of daily activity goals, it delivers the essentials you’d expect from a smartwatch-style experience, but in a more understated, watch-collector-friendly form.

After syncing, your activity data can be sent to Apple Health or Google Health, making it easy to view trends over time and keep everything in one place alongside other wellness stats. One thing to note is that The Heir does not include a heart rate sensor, so it won’t capture pulse-based insights during workouts or throughout the day. Still, it aims to cover the most common activity tracking needs without putting key features behind a paywall. There’s no subscription required, and all functionality works through its companion smartphone app.

Battery life is rated at up to 42 hours, which means most users will need to recharge it at least every other day. It’s not the kind of device you can forget about for a week, but it should fit comfortably into a regular charging routine.

Pricing and availability are straightforward. The Heir is available now through the manufacturer’s online store for $149, with deliveries expected to begin in spring 2026. International shipping is also offered through Ganance, making it accessible for buyers outside the manufacturer’s home market.