For tablets and watches, you will need to buy them directly from T-Mobile to get the savings, and then stay with the carrier ...
No matter how good the batteries might get in the latest phones, you're always going to need to charge them again eventually.
Who should buy the Logitech G Astro A30 Wireless Gamers who want to personalize their headset’s look, but also want decent audio, great connectivity, and excellent cross-compatibility.