Google is about to sell two Fitbit bands with the same sensors, the same app and the same week-long battery claim, and the only thing separating them is whether there is a screen on top. The Fitbit Air is the $99 screenless pebble that has been on sale since May. The Fitbit Edge is the band Google teased on 9 October and will reveal on 12 October, and every leak describes a 1.34-inch always-on display, GPS and ECG for about $180. This is the comparison for anyone standing in that $80 gap.
Disclosure: Fitcoin is our product. We are not affiliated with Google, Fitbit or any other hardware brand named here. We do not sell trackers and we take no affiliate commission. Where Fitcoin appears, it is as the rewards and insights app that reads the data these devices write to Google Health, Health Connect or Apple Health. Edge specifications are from leaks and are marked as such; we will update this page after Google's 12 October reveal. Everything below is a wellness estimate for general fitness, not medical advice.
Verdict: buy the Fitbit Air if the band's job is sleep, readiness and all-day heart rate and you are happy to use your phone for GPS and for looking at things. Buy the Fitbit Edge if you want pace on your wrist during a run, a spot ECG, notifications, or built-in GPS, particularly on an iPhone where Google's only other screened option is a watch that does not pair. The Air will be the better overnight tracker because it has nothing to light up. The Edge will be the better daytime one. They are not two sizes of the same product.
Spec sheet, side by side
Air figures are from Google's product page. Edge figures are from the Dealabs retail sheet and Android Headlines renders, cross-checked against the FCC filing, and remain unconfirmed until Monday.
| Fitbit Air | Fitbit Edge (leaked) | |
|---|---|---|
| Price | $99 / £85 / €99 | ~$180 / £159 / €179 |
| Display | None | 1.34-inch always-on AMOLED touchscreen |
| Weight | 12 g (tracker) | 17.7 g |
| Case | Plastic pebble in a fabric or silicone band | Aluminium, 39.2 x 25.6 x 11.6 mm |
| GPS | Phone only | Built in |
| Heart rate, HRV, SpO2, skin temp | Yes | Yes |
| ECG app | No. AFib alerts from optical HR | Yes, electrical sensors listed |
| Sleep stages and score | Yes, free | Yes, expected free |
| Daily Readiness | Yes, free | Yes, expected free |
| Notifications | None | Calls, SMS, apps, quick replies, media controls |
| Battery | About 7 days, fast charge | Up to 7 days; about 2 with always-on display |
| Water rating | 5 ATM | 5 ATM and IP68 |
| Phones | Android 11+, iOS 16.4+ | Android 11+, iOS 16.4+ |
| Subscription | Optional Google Health Premium, $9.99 a month | Same, expected |
The screen, and what it actually buys you
Start with what the two share, because it is almost everything that matters for health. Both devices feed the Google Health app, which does the thinking: sleep staging, the rebuilt 0 to 100 sleep score, Daily Readiness, HRV trends, breathing rate and skin temperature variation under Vitals. The optical heart-rate sensor family is the same, the SpO2 approach is the same, and the AFib notification algorithm runs on the same kind of overnight data. If you put an Air and an Edge on opposite wrists and slept, you should wake up to near-identical numbers.
What the Edge adds is everything that happens while you are awake and looking at your arm. A 1.34-inch AMOLED is big for a band: the Charge 6 panel is 1.04 inches, so this is a meaningful jump in how much pace, distance and heart-rate zone fits on screen at once. Built-in GPS means a run or ride is mapped without a phone strapped to you. The ECG app is the other hard difference: the Air can tell you overnight that your rhythm looked irregular, while the Edge, if the electrical sensors are real, lets you take a 30-second spot reading when you feel odd and show the trace to a doctor. That is not a small distinction for anyone over fifty or with a family history.
Notifications are the feature people claim not to want and then miss. The Air cannot show you who is calling. The Edge, per the leak, handles calls, texts, app alerts, quick replies and media controls, which covers most of what people use a Pixel Watch for during a workout.
Battery: the seven-day claim means different things
Both bands say seven days. Only one of them means it unconditionally. The Air has no display, so its week is a week whether you check the app ten times a day or never. The Edge's seven days, according to the leaked sheet, assumes the display sleeps until you raise your wrist. Turn on always-on mode and the figure drops to about two days, which is Pixel Watch territory and means a charger by the bed.
That has a knock-on effect for sleep tracking that the spec sheet hides. The whole case for a screenless band is that it is on your wrist at 3am instead of on a charger. An Edge used with raise-to-wake keeps that advantage. An Edge used with the display always on loses it, and at that point you may as well buy a Pixel Watch 5 with a bigger screen and apps, if you are on Android. The leaked sheet also describes the Edge's battery as user-replaceable, which if confirmed would make it the only consumer band you can re-cell in year three rather than replace. We are treating that row as the most likely to be misreported.
Comfort and sleep
Twelve grams against 17.7 grams does not sound like much. In practice the difference is the metal case. The Air is a plastic pebble with no edges, and most owners stop noticing it within a day; that is the quality that makes it work as an overnight device. The Edge is an aluminium rectangle with a glass face, closer to a Charge 6 in feel. Charge owners sleep in theirs without complaint, so this is not a dealbreaker, but if you have ever taken a watch off at night because it bothered you, the Air is the safer bet.
The Edge's 5 ATM plus IP68 rating is a touch more thorough than the Air's 5 ATM alone, since IP68 adds a dust rating, but both are fine for swimming and showers. Neither is a dive device.
On an iPhone
This is where the Edge gets interesting beyond the spec sheet. Google's Pixel Watch 5 requires Android 12 or newer and does not pair with iPhones. The Fitbit Air does pair, and the leaked Edge sheet lists the same iOS 16.4 requirement. If that holds, the Edge becomes the only current Google device that gives an iPhone owner a screen, GPS and ECG, at less than half the price of an Apple Watch Series 12 and with several times its battery life. Neither Fitbit writes to Apple Health directly; your data lives in Google Health, and third-party apps read it from there. If HealthKit is the centre of your setup, that caveat applies equally to both.
Price over three years
Neither device needs a subscription for the core data, so the hardware price is close to the whole cost. Over three years:
- Fitbit Air: $99. If you add Google Health Premium for Health Coach, $99 plus $359.64, about $459.
- Fitbit Edge (leaked): about $180. With Premium, about $540.
- For comparison, Whoop One: $597 over three years with mandatory membership, no screen, no GPS.
The $80 gap is a one-off. Spread over three years it is $2.20 a month for a screen, GPS and an ECG. Framed that way the Edge is not expensive; the question is purely whether you want those three things on your wrist or are happy for them to live on your phone.
Who should buy which
- Buy the Fitbit Air if: you want the lightest overnight tracker Google makes, you do not want notifications on your body, and your runs are either phone-in-hand or untracked anyway. It is $99 and it is not about to get worse.
- Buy the Fitbit Edge if: you want pace and heart-rate zone on your wrist mid-run, you want built-in GPS, you want an ECG you can trigger, or you are on an iPhone and want a screened Fitbit at all.
- Buy neither and get a Charge 6 if: it drops below $120 on Edge launch week and you do not care about a metal case or the bigger screen. See Fitbit Edge vs Charge 6.
- Skip both if: you already wear a Pixel Watch or Apple Watch overnight. Neither band adds much on top.
Whichever you pick, the Google Health feed is the asset. Fitcoin, our app, reads it alongside Health Connect on Android and Apple Health on iPhone, builds a daily FitScore from steps and detected workouts, and converts that into partner rewards plus Sleep, Recovery and Energy coaching. An Air and an Edge produce the same FitScore for the same day; the screen does not earn you anything extra. Setup is in Fitbit Air rewards.
Frequently asked questions
What is the difference between Fitbit Edge and Fitbit Air?
The Air is a $99 screenless 12-gram tracker with no GPS and no display. The leaked Edge adds a 1.34-inch always-on AMOLED screen, built-in GPS, an ECG app, notifications and a metal case in a 17.7-gram band, for roughly $180. Both run the Google Health app on Android and iPhone and both claim about seven days of battery.
Does the Fitbit Edge have better health tracking than the Air?
Slightly, on paper. Both track heart rate, HRV, SpO2, skin temperature and sleep stages. The Edge adds an ECG app for spot rhythm checks and, per the leak, VO2 max from GPS runs. The Air only flags AFib from optical heart-rate patterns. For overnight metrics the two should be close.
Which has better battery life, Fitbit Edge or Fitbit Air?
The Air, in practice. Both claim about seven days, but the Edge's seven assumes raise-to-wake; with the always-on display enabled the leak says about two days. The Air has no screen to drive and holds its week consistently.
Should I wait for the Fitbit Edge instead of buying a Fitbit Air?
Wait if you want a wrist display, built-in GPS or ECG, especially on an iPhone. Buy the Air if you want the lightest possible overnight tracker and your phone can handle GPS. The reveal is 12 October 2026, so the wait is short.
Do Fitbit Edge and Fitbit Air work with iPhone?
The Air does, on iOS 16.4 or newer, through the Google Health app. The leaked Edge spec sheet lists the same requirement. Neither writes directly to Apple Health; data lives in Google Health.
Method: Checked October 10, 2026 against Google's Fitbit Air product page and help documentation, Google Health's official Fitbit Edge teaser, and leaked Edge specifications reported by Dealabs, Android Headlines, The Verge and 9to5Google. Leaked figures are labelled. Prices are list at publication. Fitcoin has no commercial relationship with the hardware brands named here. Wellness estimates only, not medical advice.
Related reading: Fitbit Edge: release date, price and specs, Fitbit Air review, Fitbit Edge vs Charge 6, Charge 6 vs Fitbit Air, Best fitness bands 2026, Best screenless fitness trackers
About the author: Harris Khan is the co-founder and CTO of Fitcoin, a UK fitness-rewards and health-insights app that reads Apple Health and Health Connect.