So you would like to record both sides of a call on your smartphone? The RecorderGear PR200 Call Recording device has you covered. It has a built-in speaker, 4 GB memory, and 12-hour battery life. It can be used to record lectures, meetings, and memos too.
The device is compatible with Bluetooth smartphones, such as iPhone and most Android devices. To playback recordings, simply plug the PR200 into your PC or Mac like a flash drive. Costs under $110 at this time.