While there isn't a specific individual product named the "Good Feature Watch GR Upgrade 2018," the components of your query likely refer to the Samsung Galaxy Watch Go to product viewer dialog for this item.

If you are referring to a different "GR" model, these were also notable in or around 2018: Casio G-Shock GR-B100 (2018)

: Mentioned in enthusiast communities like Reddit as a high-quality "upgrade" for dive watch collectors during that year. Samsung watch models explained

: A solar-powered model known for its and a suspended mechanism for ultimate shock resistance. Christopher Ward C60 Trident (2018)

replaced the Gear S3 and introduced several features often highlighted as "good features" in reviews from that time: Key Upgrade Features (2018 Model)

: Reviewers at CNET praised the tactile rotating bezel as its best feature, offering a "more watch-like" way to navigate widgets and notifications compared to touchscreens alone.

: A primary "upgrade" was the significantly improved battery, which lasted several days, beating out the Apple Watch Series 4 at the time.