These don't have an IPX rating or if they do it hasn't been listed. If you're gonna spend $250 on some true wireless earbuds might as well just toss in the extra $50 and get the best sounding ones possible and get ones with an IPX rating.
The Master and Dynamic MW07
The Sennheiser Momentum True Wireless
Both of these have an IPX rating of IPX4 which means they can actually get wet and survive. That makes them acceptable for the gym or regular use. They're both about $300. The Momentums sound slightly better and get a bit louder than the MW07s. They also both have aptX for Android for superior sound quality or AAC on iPhones. The MTW have an app on iOS and Android for firmware and sound adjustments. The MW07s don't have an app.
True wireless headphones typically sound inferior to wired Bluetooth earbuds. I've owned both of those and they sound superior to any wired Bluetooth earbuds I've heard.
I've also seen the Bang & Olufsen Beoplay E8 2.0 compared to them but at $320-$350 I wasn't willing to go that high when the MTW sound so good. The E8s have wireless charging though.
I own a set of Powerbeats 3s and they just sit. I almost never use them. I usually use my Jaybird X3, X4, Tarah Pros, or my Momentum True Wireless. At work I use my Sennheiser HD1 Wireless Free or my Galaxy Buds.
Also in my pile of buds I don't really use anymore are the Jaybird BlueBuds X, Bose SoundSport Wireless, the BeatsX, and the Fitbit Flyers. I have a lot of wireless earbuds. I'm a headphone junkie.