The standard Watch6 and Watch6 Classic differ in two ways outside of screen sizes and battery life. The latter is made of more durable stainless steel, whereas the Watch6 sticks with aluminum. The Classic also gets the fun rotating mechanical bezel that I love, but the basic Watch6 uses a touch bezel, which Samsung used on last year's models. I really dislike the touch bezel—mechanical all the way! These models are priced from $300 for the smallest Watch6 all the way up to $430 for the largest Classic, but you can also opt for the LTE model, which ticks the price up.
Everything else is more or less the same, from the 5-ATM and IP68 water resistance to built-in GPS support. Samsung has integrated a little button into the 20-mm straps you can push to release them from the case if you want to swap them out, but I found that it really requires some force. I wish these buttons were a smidge bigger. I swapped the silicone band out for the much nicer fabric band, but the straps aren't proprietary. You can still use any 20-mm straps you want.
Smartwatches are passive devices that I mostly interact with when they pester me. I've used the Watch6 Classic to respond to messages, delete notifications, and take the occasional call when my hands are full of grocery bags. (I used my chin to rotate the mechanical bezel to the right to accept the call!)
The Watch6 runs the new Wear OS 4 version, and the app selection on Google's smartwatch platform is slowly improving. I've used it to check my Google Keep notes, and I love using the Google Home app to control my living room fan and the window AC in my office. I really want to see more messaging apps join the platform, though. WhatsApp is now available, which is great for starting new conversations if your phone is in another room, but can Telegram come back? Or Facebook Messenger?
One new crucial addition in Wear OS 4 is the ability to finally switch phones without having to completely reset the smartwatch. As someone who tests a new phone once every few weeks, I have been asking for a feature like this for years, and I am so happy to see it here. Naturally, when I was switching back to the Pixel Fold from the Galaxy Z Fold5, it took a few minutes and everything was set up exactly the way it was before within minutes. We live in the future.
Wear OS watches have always been laggier than Apple Watches, and while Samsung and Google have made strides to reduce the stutters you see while moving through the operating system, it's still not as buttery smooth as using an Apple Watch. Even with the upgraded Exynos W930 chipset inside, you will see some slowdowns here and there.
Classic Health
I like using smartwatches to see basic health metrics too—mostly the ability to see what my heart rate is at any given moment and to track how little sleep I get. There's also the peace of mind with features like fall detection (you have to manually turn this on), and the option to quickly contact 911 by pressing the top side button five times. If you menstruate, you can also take advantage of skin-temperature-based cycle tracking.
The Watch6 series now has FDA-cleared irregular heart rate notifications too, along with the existing electrocardiogram, which is a nice addition. Weirdly, you still need to download a separate app for these functions (Samsung Health Monitor). There is blood pressure monitoring, but it's not available in the US, and it's not cleared by the FDA. Just keep in mind that this trio of features is restricted to people who pair the watch with a Samsung phone. If you use another Android phone like a Google Pixel, you won't be able to use the ECG or get irregular heart rate alerts.