We thought the voice controls worked well for the most part, but there were times when the headset didn't quite understand what we were saying. Samsung warns that the system won't recognize words if you speak softly or unclearly. Also, if there is a lot of background noise around you, the headset might inadvertently respond to voice commands from other people. Finally, you can't use the voice controls during music playback. In our tests, we found that voice controls didn't always work with the FreeSync app, which we'll get to later. If you would rather not use the voice controls, you can turn them off.
The HM3700 is compatible with Samsung's own FreeSync Android app, which adds more functionality to the headset, like incoming caller ID and text-to-speech for text messages and Gmail. You can adjust the number of words the headset will read to you, as well as the reading speed. You can also schedule alarms to go off at a certain time. With the Android app you can control the LED indicator and easily toggle the voice command function on and off. You can enable multipoint mode via the app (you can also do so without the app; it's just a bit more troublesome). The app also gives you a handy cheat list of all the voice commands available to you. As a bonus, when the app is activated, you'll see the headset's battery meter at the top of the phone's screen.
While we appreciate the extra features the Android app provides, we have to say that we didn't always get the best experience with it. When the app was on, the Bluetooth headset would often disconnect, and we would have to reconnect it to get the app to work. When we tried the "What time is it?" voice command, it would sometimes stall. The text-to-speech feature also failed to impress us, with horribly robotic readings of text, often to the point of incoherence. It's better than nothing, especially if you're driving a car and don't have the time to read your text messages, but we would really rather leave the messages to be read later.
We paired the HM3700 with the . Sound quality was quite impressive on the whole. Music sounded rich and full, with decent bass. We didn't mind the acoustics of the provided earbuds, but quality could certainly improve if you use your own preferred headphones.
Call quality was decent as well. We heard our callers clearly, with hardly any hiss or crackle. Voices did sound a little distorted at times, but nothing distracting. On their end, callers reported good audio quality. They too said there was some distortion, with our voice sometimes going in and out. However, it only happened occasionally, and wasn't a big problem. We also tested the headset in a relatively noisy environment at a busy cafe during lunchtime. While callers could hear the hum of the crowd in the background, we were able to carry on a conversation uninterrupted.
The Samsung HM3700 has a rated battery life of 9 hours of talk time and 12.5 days of standby time.
The Samsung HM3700 is a great Bluetooth headset if you want both a mono and stereo option in one handy package. It works well as both types of headset, though we did miss having player controls when playing music. It feels comfortable in the ear, and we liked the provided pair of stereo earbuds too. We do recommend using the headset clip when the earbuds are plugged in so that the headset isn't dangling freely in front of you. Features are great, and we like the voice control option. While we appreciate the extra features the FreeSync Android app provides, we think it's a little buggy, and we don't really think it's necessary. On the whole, we think the Samsung HM3700 is worth its $59.99 price, but we would recommend shopping around for an even better deal.