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Software · head to head

Eight Sleep vs Fitbit

Eight Sleep logo

Eight Sleep

Software

The sleep fitness company

From
$19/month
Rated
-
Full reviewWebsite
Fitbit logo

Fitbit

Software

Health and fitness tracking for everyone

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Fitbit has a free tier, so it costs nothing to try first.
  • Each has a real cost: Eight Sleep mandatory monthly subscription ($17-$33) required for core features; Fitbit sleep tracking relies on accelerometer data and heart rate variability, which may inaccurately reflect actual sleep patterns
  • They diverge on capability: Eight Sleep covers Dynamic temperature control, Fitbit covers 24/7 activity tracking.

Where they differ

Only the attributes on which Eight Sleep and Fitbit actually diverge.

Attributes where Eight Sleep and Fitbit differ
AttributeEight SleepFitbit
Starting price$19/monthFree
Pricing modelsubscriptionUnknown
Free tierNoYes
PlatformsHardware, iOS, AndroidiOS, Android, Windows, macOS, Wear OS, Fitbit OS
Founded20142007

Identical on both: user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Eight Sleep

  • Dynamic temperature control
  • Sleep tracking
  • HRV monitoring
  • Gentle wake alarm
  • Dual zone temperature
  • Apple Health
  • WHOOP
  • Oura

Only in Fitbit

  • 24/7 activity tracking
  • Heart rate monitoring
  • Sleep analysis
  • Stress management
  • Active Zone Minutes
  • MyFitnessPal
  • Strava
  • Weight Watchers

Both cover

  • Google Fit
  • Ios support
  • Android support

What people use each for

The jobs each tool is most often brought in to do.

Eight Sleep

  • Workout tracking
  • Nutrition management
  • Health monitoring
  • Fitness coaching
  • Wellness improvement

Fitbit

  • Workout tracking
  • Nutrition management
  • Health monitoring
  • Fitness coaching
  • Wellness improvement

Both are used for workout tracking, nutrition management, health monitoring, fitness coaching, wellness improvement, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Eight Sleep

  • Mandatory monthly subscription ($17-$33) required for core features
  • Premium pricing starts at $2,999 for mattress cover alone
  • Pod Pro mattress rated as too firm for side sleepers with delicate pressure points
  • Edge support weakness with minimal perimeter reinforcement
  • Limited to Queen and Full sizes only

Fitbit

  • Sleep tracking relies on accelerometer data and heart rate variability, which may inaccurately reflect actual sleep patterns
  • International users must consent to data transfer to US with different privacy protections
  • Devices require regular charging and consistent wearing for reliable data collection
  • History of data breaches including 61 million exposed fitness records from third-party service

Pricing, plan by plan

Eight Sleep

$19/month
  • Autopilot$19/month
    • Auto temperature
    • Sleep reports
    • Health insights

Fitbit

Free

No published plan breakdown. See the Fitbit review.

Which should you pick?

Choose Eight Sleep if

  • You need dynamic temperature control.
  • You work on Hardware, iOS, Android.
  • You also want sleep tracking.
Eight Sleep review

Choose Fitbit if

  • You need 24/7 activity tracking.
  • You want to start without paying.
  • You work on iOS, Android, Windows, macOS, Wear OS, Fitbit OS.
  • You also want heart rate monitoring.
Fitbit review

Questions people ask

Is Eight Sleep or Fitbit better?
Neither clearly leads. Eight Sleep starts at $19/month and Fitbit at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Eight Sleep or Fitbit?
Fitbit has a free tier; the other does not. Paid plans start at $19/month for Eight Sleep and Free for Fitbit.
Does Eight Sleep or Fitbit run on more platforms?
Eight Sleep runs on Hardware, iOS, Android. Fitbit runs on iOS, Android, Windows, macOS, Wear OS, Fitbit OS.
Can I use Fitbit for free?
Yes. Fitbit has a free tier, so you can try it without paying. Eight Sleep starts at $19/month.
What is Eight Sleep best used for?
Eight Sleep is most often used for workout tracking, nutrition management, health monitoring, fitness coaching.
What can Eight Sleep do that Fitbit cannot?
Eight Sleep covers Dynamic temperature control, Sleep tracking, HRV monitoring, Gentle wake alarm. Fitbit covers 24/7 activity tracking, Heart rate monitoring, Sleep analysis, Stress management. Both handle Google Fit, Ios support, Android support.

Answered from the vendors’ own pages

Eight Sleep: What is the temperature control range of Eight Sleep?

Eight Sleep Pod offers independent temperature adjustment on each side of the bed, with a range of 55 to 110 degrees Fahrenheit. Each side can be controlled separately, allowing couples to have different preferences.

Source
Fitbit: Does Fitbit require a paid subscription?

No. Basic Fitbit app usage is free. Fitbit Premium costs $9.99/month or $99.99/year for advanced features like personalized coaching and detailed health analytics.

Source
Eight Sleep: Is a subscription required for Eight Sleep Pod?

Yes, Eight Sleep Pod requires a mandatory monthly subscription with three tiers ranging from $17 to $33 per month. The subscription includes access to sleep tracking, autopilot features, and other health analytics.

Source
Fitbit: What data does Fitbit collect and how is it used?

Fitbit tracks activity, heart rate, sleep, and calories burned. Google committed not to use Fitbit health data for advertising for 10 years following the 2021 acquisition, with EU regulatory approval.

Source
Eight Sleep: What are the available sizes for Eight Sleep?

Eight Sleep Pod is available only in Full and Queen sizes. Half-size options are not available, which may limit options for smaller beds.

Source
Fitbit: Does Fitbit work offline?

Fitbit devices track activity locally on the wearable, but syncing data to the app requires internet connectivity. Real-time analytics are cloud-based.

Source
Eight Sleep: What wearables does Eight Sleep integrate with?

Eight Sleep integrates with 40+ wearables through its Terra API partnership, including Apple Watch, Fitbit, Garmin, Oura, WHOOP, and syncs with Apple Health and Google Fit.

Source
Fitbit: What platforms does Fitbit support?

Fitbit works with iOS, Android, Windows, and macOS. Smartwatches integrate with Wear OS, watchOS, and proprietary Fitbit OS.

Source
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