Are you planning to combine it with other info?
Your smartwatch already knows how long you've slept, getting that info directly to your database seems more efficient and less error prone. The same goes for the amount of money you've spend, if your bank allows you to export that info it'll save you a step. Your bank doesn't know what you've bought, only the total cost, time and shop, but if you scan and upload your receipts and use ocr you'll have a detailed record of that too.
And you could also keep track of your location, so you know where you had a conversation or at what gas station you spend 250,000
Diarization might be my next step,(recognizing the speaker on the recording).
Combining the information from multiple sources as you say will get you a complete view (location history and time of the recording will let you know if you where speaking with a college or your spouse for example)
And you could also keep track of your location, so you know where you had a conversation or at what gas station you spend 250,000