r/QuantifiedSelf
25k members
r/QuantifiedSelf is a subreddit with 25k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses tracking, health, data, app, and data tracking, and they frequently recommend/review sleep tracker, fitness watch, and smart watches.
Popular Themes in r/QuantifiedSelf
#1
Solution Requests
: "I want to share how I use "Excel" to track habits and metrics"
11 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"
11 posts
#3
Self-Promotion
: "I built a tool that turns your Apple Health + Whoop data into a local SQL database — no uploads, no cloud, no accounts. Still early but wanted to share."
5 posts
#4
Ideas
: "Thinking about building an app that tracks your day automatically — does this sound useful?"
2 posts
#5
Money Talk
: "3 wearables/devices I spent money on that actually felt useful in managing stress, sleep and focus"
1 post
#6
Opportunities
: "The health tracking ecosystem is so fragmented. Here's my setup, open to suggestions."
1 post
Popular Topics in r/QuantifiedSelf
#1
Tracking
: "Tracking my 2026"
96 posts
#2
Health
: "I exported 3 years of my Health tracking data. The level of detail was both fascinating and unsettling"
83 posts
#3
Data
: "I exported 3 years of my health tracking Data. The level of detail was both fascinating and unsettling"
66 posts
#4
App
: "I built a tool that turns your Apple Health + Whoop data into a local SQL database — no uploads, no cloud, no accounts. Still early but wanted to share."
55 posts
#5
Data Tracking
: "4 years of wearable data, 47 significant correlations — here's the stats methodology I used (and the tool I built when spreadsheets broke me)"
28 posts
#6
Wearables
: "3 Wearables/devices I spent money on that actually felt useful in managing stress, sleep and focus"
27 posts
#7
Sleep
: "Guide to what influences staying aSleep through the night (Research Based)"
25 posts
#8
Fitness
: "12 years of personal Fitness tracking without looking at raw numbers — using Z scores to measure overall Fitness"
17 posts
#9
Wearable
: "*Updated* summary of research on the "most accurate" health Wearable by metric. Oura Ring, Apple Watch, Fitbit, Garmin, Samsung Galaxy Watch, etc."
16 posts
#10
Ai
: "Instead of dashboards and charts, I turned activity data into an Ai diary"
15 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
+8k members(43.6%)
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About
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Last updated: June 7, 2026