DEPLOY

Buying guide

Fitbit (Charge / Sense / Versa)

By Fitbit · biometric

Price
$110· actual sale price
Availability
Shipping now.
Maturity
commercial
Real-world use
Yes, 1 verified deployment

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Fitbit (the Charge 6 band, plus the Sense 2 and Versa 4 watches; founded 2007 by James Park and Eric Friedman, acquired by Google in a deal that closed January 2021 for about $2.1B) is the budget-tier cleared anchor of the biometric cohort. The Charge 6, at about $160, brings cleared AFib/ECG (via electrodes on the Sense line), optical heart rate, SpO2, skin temperature, a Sleep Score and Sleep Profile, a Daily Readiness Score, and stress management, with an optional Fitbit Premium subscription (~$9.99/month). It is a Google product line, recorded in the registry as a distinct entity from the Pixel Watch and the Google company, and its health stack shares lineage with the Pixel Watch's Fitbit/Google Health algorithms. The throughline: the strongest cardiologist-validation gradient available at a budget price point, with the AI augmenting genuine biometric sensing.

Readiness

Fitbit (Charge / Sense / Versa) is shipping now at $110-$160 (actual sale price), the 3 capability claims on file are mixed autonomy with verified, 1 verified deployment is on file, and 1 incident is on record.

Availability
shipping-now

Shipping now.

see evidence →

Price honesty
actual-sale-price

2 prices on file: $110 (actual sale price), $160 (actual sale price).

see evidence →

Capability honesty
autonomous

3 reviewed claims, mixed: 2 autonomous, 1 claimed-only.

see evidence →

Real-world use
commercial

Maturity: commercial. 1 verified deployment in the registry.

see evidence →

Safety record
incidents-on-file

1 incident on record across 1 verified deployment.

see evidence →

What it claims to do

Price

Real-world use

Safety record

Privacy

Privacy practices disclosed by Fitbit for Fitbit (Charge / Sense / Versa), with verification status.

  • Data saleverified

    EU regulators required Google to promise not to use your Fitbit health data for advertising for about 10 years, ending around 2031. US regulators made no similar requirement, so US users are protected only by Google's own policy, which can change with notice.

    Source: European Commission: EC approves acquisition of Fitbit by Google, subject to conditions, December 2020

  • Data deletion controlverified

    Fitbit required all users to migrate to Google Accounts by January 2023, eliminating standalone Fitbit accounts. Users who did not migrate lost access to their health history with no option to stay on a Fitbit-only account.

    Source: Google Support: Migrating your Fitbit account to a Google Account

  • Other disclosed practiceverified

    In 2011, Fitbit profiles were public by default and some users' sexual activity logs appeared in Google search results. Fitbit only changed the default to private after the story became public. This culture of public-by-default health data is now managed under Google.

    Source: TechCrunch: Fitbit Users' Sexual Activity Appearing in Google Search Results, July 2011

  • Data retentionverified

    Account info is kept as long as your account exists. Activity data stays until you delete it or close your account. Most data is deleted within 30 days of account closure, though full deletion can take up to 90 days.

    Source: https://support.google.com/product-documentation/answer/14815921

  • Cloud uploadverified

    Every sync transfers all recorded data including heart rate, sleep, steps, and GPS to Fitbit's servers. There is no option to use the device without cloud syncing.

    Source: https://support.google.com/product-documentation/answer/14815921

  • Third-party sharingverified

    Shares your data with Google and other corporate affiliates, service providers, and partners for support, payments, marketing, and research, and shares your name, photo, and friends list with Google for account integration.

    Source: https://support.google.com/product-documentation/answer/14815921

  • Training data useverified

    Fitbit uses your data to develop new features that may include generative AI models, and draws inferences about you from your sleep patterns, habits, and exercise history.

    Source: https://support.google.com/product-documentation/answer/14815921

  • Location trackingverified

    Collects your precise location via GPS, device sensors, WiFi, and cell towers when you grant permission, and may also estimate your location from your IP address.

    Source: https://support.google.com/product-documentation/answer/14815921

  • Biometric storageverified

    Continuously collects heart rate, sleep stages, steps, distance, calories, weight, HRV, skin temperature, blood oxygen, and breathing rate, all uploaded to Fitbit's servers when the device syncs.

    Source: https://support.google.com/product-documentation/answer/14815921

  • Biometric storageverified

    Fitbit devices collect sleep patterns, heart rate, skin temperature, calories burned, and steps taken; Google also collects account information including name and password, device identifiers, IP address, location data via GPS and sensor data, and activity data including search terms, videos watched, and Chrome browsing history synced with the Google Account.

    Source: maker privacy policy · 2026-06-17

  • Data saleverified

    Google does not sell your personal information and does not share your personal information as that term is defined in the California Consumer Privacy Act; data is shared with affiliates and trusted service providers, with domain administrators for work or school accounts, and non-personally identifiable information may be shared publicly and with partners including publishers, advertisers, developers, or rights holders.

    Source: maker privacy policy · 2026-06-17

  • Data deletion controlverified

    Fitbit and Google users can delete content from specific services or their entire Google Account, export data via Google Takeout, adjust history and personalization controls, turn off personalized ads in My Ad Center, use Privacy Checkup for key settings, and set data to be deleted automatically after a set period of time.

    Source: maker privacy policy · 2026-06-17

  • Data retentionverified

    Google keeps user-created content until the user removes it, deletes or anonymizes some data automatically after a set period such as advertising data in server logs, and retains some data until account deletion; Google uses encryption to keep data private while in transit and restricts access to employees, contractors, and agents subject to strict contractual confidentiality obligations.

    Source: maker privacy policy · 2026-06-17

Specs

notes
  • FDA clearances: ECG app: FDA-cleared Sept 2020 (on-demand 30-sec ECG, AFib vs sinus rhythm; on Sense/Sense 2). PPG Irregular Heart Rhythm Notifications (passive background AFib detection): FDA-cleared Apr 11 2022 (Charge 5/6, Sense/Sense 2, Versa 3/4, Inspire 3, Luxe, Pixel Watch).
  • CAP-FLAG: SpO2, EDA 'stress', Sleep Score, Daily Readiness are WELLNESS features, NOT FDA-cleared for any diagnostic claim.
  • Current state (corrects 'dead' framing): Fitbit is now a Google PRODUCT LINE, not an independent company (register under Google ownership). Standalone Fitbit-branded SMARTWATCH hardware is deprioritized (no Sense 3; strategy consolidated onto Pixel Watch), BUT Google confirmed (Oct 2025) new Fitbit hardware for 2026 (trackers) + a 'Fitbit Coach' AI - so deprioritized, not dead.
  • Verification posture: Boundary: biometric-primary + AI-augmented. Clinical posture: strongest of the cohort on AFib specifically (Fitbit Heart Study, large prospective, published 2025). NOT verified: 2026 Fitbit hardware specs (unannounced); 'Fitbit Coach' AI (pre-launch).
specs
Fitbit (Charge 6 (2023), Sense 2, Versa 4 - current/last-gen). Sensors: optical HR/PPG, ECG electrodes (Sense/Sense 2), cEDA stress sensor (Sense 2), SpO2, skin temperature. AI/health: AFib/ECG, Sleep Score + Sleep Profile, Daily Readiness Score, stress management. Founded 2007 (James Park + Eric Friedman); acquired by Google, closed Jan 2021 (~$2.1B). Hardware purchase + optional Fitbit Premium (~$9.99/mo).
battery
7 days
weight_kg
0.005
formFactor
biometric (biometric-primary fitness band/watch + AI augmentation; AFib/ECG cleared)
fda_clearance
{"source":"https://www.fda.gov/medical-devices/recently-approved-devices/fitbit-sense-ecg-k203204","status":"cleared","details":"Fitbit Sense: FDA-cleared ECG (K203204, 2020); irregular rhythm notification. Post-Google acquisition (2021) maintains clearance. Charge/Versa lines = wellness only.","audited_at":"2026-06-07","source_name":"FDA","health_claim":"ECG on Sense model only; wellness/fitness primary for Charge/Versa. FDA-cleared subset is model-specific.","verification_posture":"verified"}

What's under the hood

No brain on file for Fitbit (Charge / Sense / Versa).

Frequently asked questions

Is the Fitbit (Charge / Sense / Versa) actually available for purchase?
Yes, shipping now.Source: Fitbit ECG app FDA-cleared (Sept 2020; on the Fitbit Sense)
What does the Fitbit (Charge / Sense / Versa) cost?
Fitbit (Charge / Sense / Versa) has 2 prices on file: $110 one-time (actual sale price) and $160 one-time (actual sale price).Sources: Fitbit Charge 6 reduced to $109.95 on Google Store (July 2025); GPS, Google Maps, heart rate, SpO2; 3-month Google One included, Google Store (Fitbit Charge 6)
Does the Fitbit (Charge / Sense / Versa) really tracks sleep?
Yes, verified. Fitbit (Charge / Sense / Versa) performs this autonomously.Sources: Mantua et al. 2016 (Sensors): 'Reliability of sleep measures from four personal health monitoring devices compared to research-based actigraphy and PSG'; Fitbit Charge HR showed 81% sleep/wake classification agreement vs. PSG. Multiple subsequent Fitbit validation studies published 2016-2023., Fitbit Sleep Profile (2022): monthly sleep analysis across 10 metrics; Sleep Score composite (0-100); first wearable brand to publish multi-study sleep validation program.
Does the Fitbit (Charge / Sense / Versa) really tracks fitness and activity?
Yes, verified. Fitbit (Charge / Sense / Versa) performs this autonomously.Source: Evenson et al. 2015 (BJSM): 'Systematic review of the validity and reliability of consumer-wearable activity trackers'; Fitbit consistently among highest-accuracy step counters vs. research-grade accelerometers across multiple validation studies.
Does the Fitbit (Charge / Sense / Versa) really tracks heart health?
Claimed by Fitbit; no verified demonstration on file.Source: Fitbit PurePulse 2.0 HR sensor: continuous all-day HR, resting HR trend, HR Zones for exercise, high/low HR notifications, irregular rhythm notifications (Charge 5+/Sense 2/Pixel Watch). Irregular rhythm notification received FDA 510(k) clearance for AFib screening (Fitbit Sense/Charge 5, cleared December 2022).
Where is the Fitbit (Charge / Sense / Versa) being used?
Fitbit (Charge / Sense / Versa) is in use at: Global.Source: Fitbit
Is the Fitbit (Charge / Sense / Versa) safe?
Incidents on record: 1 (1 recall). See Fitbit Ionic burn-hazard recall (~1M US units); $12.25M CPSC penalty in 2025.Source: Fitbit Ionic burn-hazard recall (~1M US units); $12.25M CPSC penalty in 2025
How does the Fitbit (Charge / Sense / Versa) handle privacy?
Fitbit has disclosed 13 privacy practices for Fitbit (Charge / Sense / Versa): data sale (EU regulators required Google to promise not to use your Fitbit health data for advertising for about 10 years, ending around 2031. US re..), data deletion control (Fitbit required all users to migrate to Google Accounts by January 2023, eliminating standalone Fitbit accounts. Users who did not migrat..), other disclosed practice (In 2011, Fitbit profiles were public by default and some users' sexual activity logs appeared in Google search results. Fitbit only chang..), data retention (Account info is kept as long as your account exists. Activity data stays until you delete it or close your account. Most data is deleted..), cloud upload (Every sync transfers all recorded data including heart rate, sleep, steps, and GPS to Fitbit's servers. There is no option to use the dev..), third-party sharing (Shares your data with Google and other corporate affiliates, service providers, and partners for support, payments, marketing, and resear..), training data use (Fitbit uses your data to develop new features that may include generative AI models, and draws inferences about you from your sleep patte..), location tracking (Collects your precise location via GPS, device sensors, WiFi, and cell towers when you grant permission, and may also estimate your locat..), biometric storage (Continuously collects heart rate, sleep stages, steps, distance, calories, weight, HRV, skin temperature, blood oxygen, and breathing rat..), biometric storage (Fitbit devices collect sleep patterns, heart rate, skin temperature, calories burned, and steps taken; Google also collects account infor..), data sale (Google does not sell your personal information and does not share your personal information as that term is defined in the California Con..), data deletion control (Fitbit and Google users can delete content from specific services or their entire Google Account, export data via Google Takeout, adjust..), and data retention (Google keeps user-created content until the user removes it, deletes or anonymizes some data automatically after a set period such as adv..).Sources: European Commission: EC approves acquisition of Fitbit by Google, subject to conditions, December 2020, FTC: FTC Closes Investigation of Google's Acquisition of Fitbit, January 2021, Google Support: Migrating your Fitbit account to a Google Account, TechCrunch: Fitbit Users' Sexual Activity Appearing in Google Search Results, July 2011, https://support.google.com/product-documentation/answer/14815921, maker privacy policy
Who makes the Fitbit (Charge / Sense / Versa)?
Fitbit (Charge / Sense / Versa) is made by Fitbit, based in San Francisco, California, USA.Source: Fitbit ECG app FDA-cleared (Sept 2020; on the Fitbit Sense)

Video

PRIMARY SOURCE
Courtesy of Fitbit

Google's introduction of the Fitbit Charge 6 tracker. Its ECG and irregular-rhythm (AFib) notifications are FDA-cleared; activity and sleep scores are wellness-grade.

Manufacturer

Fitbit (registry record: /companies/fitbit)

Compare side by side

Sources

  1. Fitbit ECG app FDA-cleared (Sept 2020; on the Fitbit Sense) · https://www.businesswire.com/news/home/20200914005334/en/
  2. Fitbit PPG Irregular Heart Rhythm Notifications FDA-cleared (Apr 11 2022; AFib) · https://blog.google/products/fitbit/irregular-heart-rhythm-notifications/
  3. Google confirms new Fitbit hardware for 2026 (trackers, not smartwatches); no Sense 3 · https://9to5google.com/2025/10/27/fitbit-hardware-2026/
  4. Fitbit ECG App 510(k) K200948 (Sep 11 2020; spot-check single-channel ECG, AFib vs sinus, OTC) · https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm?ID=K200948
  5. Fitbit Irregular Rhythm Notifications 510(k) K212372 (Apr 8 2022; passive PPG AFib-suggestive detection) · https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm?ID=K212372
  6. Fitbit Air Specs · https://store.google.com/gb/product/google_fitbit_air_specs
  7. Mantua et al. 2016 (Sensors): 'Reliability of sleep measures from four personal health monitoring devices compared to research-based actigraphy and PSG'; Fitbit Charge HR showed 81% sleep/wake classification agreement vs. PSG. Multiple subsequent Fitbit validation studies published 2016-2023. · https://pubmed.ncbi.nlm.nih.gov/27253477/ · 2016-06-01
  8. Fitbit Sleep Profile (2022): monthly sleep analysis across 10 metrics; Sleep Score composite (0-100); first wearable brand to publish multi-study sleep validation program. · https://www.fitbit.com/global/us/technology/sleep
  9. Evenson et al. 2015 (BJSM): 'Systematic review of the validity and reliability of consumer-wearable activity trackers'; Fitbit consistently among highest-accuracy step counters vs. research-grade accelerometers across multiple validation studies. · https://pubmed.ncbi.nlm.nih.gov/24887039/ · 2015-09-01
  10. Fitbit PurePulse 2.0 HR sensor: continuous all-day HR, resting HR trend, HR Zones for exercise, high/low HR notifications, irregular rhythm notifications (Charge 5+/Sense 2/Pixel Watch). Irregular rhythm notification received FDA 510(k) clearance for AFib screening (Fitbit Sense/Charge 5, cleared December 2022). · https://www.fitbit.com/global/us/technology/heart-rate · 2022-12-01
  11. Google press/media imagery (https://blog.google/products-and-platforms/devices/fitbit/fitness-tracker-charge-6/), editorial-publication grant, mandated credit "Source: Google". Original fetched + DEPLOY-blob-hosted 2026-06-04 (sourceUrl is the blob copy, not a hotlink). · https://blog.google/products-and-platforms/devices/fitbit/fitness-tracker-charge-6/ · 2026-06-04
  12. Fitbit official product page · https://www.fitbit.com/global/us/products/trackers/charge6
  13. Google Store Fitbit page · https://store.google.com/us/product/fitbit_charge_6
  14. Fitbit official YouTube (@fitbit), embedded under standard YouTube embed terms. oEmbed author_url verified 2026-06-04. Maker product video. · https://www.youtube.com/watch?v=jbLmKWsaCvI · 2026-06-04
  15. Google Store (Fitbit Charge 6) · https://store.google.com/product/fitbit_charge_6 · 2023-10-12
  16. Fitbit · https://www.fitbit.com/
  17. Fitbit Health and Fitness Trackers | Google Store · https://store.google.com/us/category/fitbit
  18. European Commission: EC approves acquisition of Fitbit by Google, subject to conditions, December 2020 · https://ec.europa.eu/commission/presscorner/detail/en/ip_20_2488
  19. FTC: FTC Closes Investigation of Google's Acquisition of Fitbit, January 2021 · https://www.ftc.gov/news-events/news/press-releases/2021/01/ftc-closes-investigation-google-acquisition-fitbit
  20. Google Support: Migrating your Fitbit account to a Google Account · https://support.google.com/fitbit/answer/14236739
  21. TechCrunch: Fitbit Users' Sexual Activity Appearing in Google Search Results, July 2011 · https://www.techcrunch.com/2011/07/03/fitbit-users-sexual-activity-appearing-in-google-search-results/
  22. https://support.google.com/product-documentation/answer/14815921
  23. maker privacy policy · https://policies.google.com/privacy · 2026-06-17

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