Galaxy Watch 3 just got a big upgrade to fight Apple Watch 6 — but there’s a catch - Tom's Guide

The Samsung Galaxy Watch Active 2 also gets a key update.

While Samsung's wearable products are compatible with iPhones through the Samsung Galaxy Watch app, only those Galaxy Watches tied to Galaxy smartphones, like the Samsung Galaxy Note 20 Ultra or Samsung Galaxy Z Fold 2, can take ECG readings on their wrist.

On the one hand, most Galaxy Watch users are likely Galaxy smartphone users, so the ECG exclusivity might not be a big deal.

But if you're in the smaller camp of Galaxy Watch users with iPhones, like me, this is a letdown.

Samsung Galaxy Watch 3 face-off, I explained how both companies blatantly cater to their respective smartphone users.

If you're looking for a smartwatch with an FDA-approved ECG reader that should work with Android phones and iPhones — not just one or the other — you might want to consider the Fitbit Sense instead of the Apple Watch 6 or Samsung Galaxy Watch 3.