Touchscreen Casio Calculator Watch
Before smartwatches, there was the gesture-controlled, touchscreen Casio AT-552 Janus. That’s right, the AT Janus models (AT-551 and AT-552) included an eight-digit touchscreen calculator where the entire display could be used to ‘write’ the number or calculator function. The watch would recognize what had been written by the user’s fingertip and perform the calculation.



One caveat: they sometimes break. It’s typically the analog portion that stops working, and these are a disaster to disassemble. It’s not recommended that one disassemble one unless you know exactly what you’re doing. If that isn’t an issue, you can transplant pieces between similar AT models with great success and, theoretically, the analog piece can be replaced with one of the more generic analog/digital Casio units, which are far cheaper.

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Garmin Venu, GPS Smartwatch with Bright Touchscreen Display, Features Music, Body Energy Monitoring, Animated Workouts, Pulse Ox Sensor and More, Rose Gold with Tan Band (Renewed)
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Garmin Venu, GPS Smartwatch with Bright Touchscreen Display, Features Music, Body Energy Monitoring, Animated Workouts, Pulse Ox Sensor and More, Rose Gold with Tan Band (Renewed)
  • Beautiful, bright AMOLED display and up to five-day battery life in smartwatch mode; up to six hours in GPS and music mode
  • The broadest range of all-day health monitoring features keeps track of your energy levels, respiration, menstrual cycle, stress, sleep, estimated...
  • Easily download songs to your watch, including playlists from Spotify, Amazon music or Deezer (may require a premium subscription With a third-party...

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