r/QuantifiedSelf
26k members
r/QuantifiedSelf is a subreddit with 26k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses app, tracking, data, data tracking, and hrv, and they frequently recommend/review sleep tracker, fitness watch, and smart watches.
Popular Themes in r/QuantifiedSelf
#1
Solution Requests
: "Sick of $10/month "biohacking" apps? I built a free open-source Android app that does the same thing (and better)"
10 posts
#2
Advice Requests
: "Dad just died of a heart attack at 60. Heart Attacks took every man on his side. What can I do? 36M"
7 posts
#3
Ideas
: "i found a solution on how to use your sleep data more efficiently and turn your bad days of sleep into really productive days."
2 posts
Popular Topics in r/QuantifiedSelf
#1
App
: "I turned the spreadsheet I shared here before into an App. Would like to hear you feedback"
15 posts
#2
Tracking
: "are we Tracking ourselves for self-knowledge, or are we just control freaks with spreadsheets?"
12 posts
#3
Data
: "7 years of HRV Data, still averaging ~35 ms. What actually moves the needle?"
7 posts
#4
Data Tracking
: "I have tracked every hour of my life for over a year"
6 posts
#5
Hrv
: "I correlated my Hrv against everything I measure for 4 years."
6 posts
#6
Body Composition
: "Do handlebar Body Composition scales give cleaner trends than regular smart scales?"
6 posts
#7
Tracker
: "Refining a personal wellness Tracker (currently a google sheet)"
5 posts
#8
Quantified Self
: "Has anyone used Claude Fable 5 to build a Quantified Self project?"
5 posts
#9
Sleep
: "3 wearables/devices I spent money on that actually felt useful in managing stress, Sleep and focus"
4 posts
#10
Spreadsheet
: "I turned the Spreadsheet I shared here before into an app. Would like to hear you feedback"
4 posts
Products Discussed in r/QuantifiedSelf
Sleep Tracker
5 reviews
#1
Oura
4.0★ from 1 review
#2
Eight Sleep Pod Pro
5.0★ from 1 review
#3
Beddit
4.0★ from 1 review
Fitness Watch
1 review
#1
Garmin
4.0★ from 1 review
Smart Watches
1 review
#1
CMF
3.0★ from 1 review
Member Growth in r/QuantifiedSelf
Yearly
+9k members(48.6%)
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About
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Last updated: July 31, 2026