The Motorola Droid Maxx is a Verizon only smartphone. And it ought to be obvious for those of us who are experienced smartphone users since Droid is the Verizon brand.
On Verizon's excellent network in the San Francisco Bay Area, call quality was very good. Callers sounded clear and loud on the Droid Maxx, and our friends reported the same of us.
Speakerphone isn't the best, but it's good enough. You can definitely carry a phone conversation without much irritation if you're in a relatively quiet room. In a noisy environment, and we don't know why you'd do this, you'll definitely run into trouble hearing the other person.
If you actually spend a lot of time chatting on the phone, the Droid Maxx will give you a solid experience and the battery life you need to get through the lengthiest of phone calls.
Like with call quality, connectivity on the Droid Maxx is just fine. In fact, it's really great on any modern smartphone these days. It really depends on your network.
Verizon 4G LTE speeds are great. We averaged 19Mbps down and 13Mbps up in the San Francisco Bay Area. In some cases we saw peak speeds of 26Mbps down and 16Mbps up.
Wi-Fi and Bluetooth work just fine, too. We were able to pair the device with a Bluetooth speaker for music, and it worked great up to a certain distance.
The Droid Maxx also has NFC if you can find an actual use for it. We tested it on the parking meters in downtown San Francisco and it worked well.