crwdns2933423:0crwdne2933423:0

crwdns2933803:03crwdne2933803:0

crwdns2933797:0Jeff Suovanencrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Jeff Suovanen

crwdns2933769:0crwdne2933769:0
crwdns2933771:0crwdne2933771:0
crwdns2933801:0crwdne2933801:0

crwdns2933807:0crwdne2933807:0

[* black] A quick checkup on the all-ceramic-and-sapphire-crystal back details:
[* black]  Watch, check.
[* black] Series 4, check.
- [* black] A laundry list of features including water resistant to 50 meters.
+ [* black] A laundry list of features, including water resistance to 50 meters.
[* black] Optical sensor, right in the middle this time.
+ [* black] Big ring-shaped electrical sensor—that's new.
[* black] Inside one of the wrist band slots, we find a new model number, A2008—and in the other, the serial number, plus a small air vent hole for pressure equalization.