Bottom line: The Fitbit Charge 6 is $132.99 and the Garmin Forerunner 165 is $198.49. The $65 gap buys you a real GPS watch instead of a band, which matters only if you are going to run. If you are starting the gym, walking more, or mostly want step and sleep data, the Charge 6 is the better buy and the Garmin is $65 of capability you will not use. Prices checked 18 October 2026.
Check Fitbit Charge 6 Price → Check Forerunner 165 Price →
These Are Not the Same Kind of Device
Most comparisons at this price treat these as competing products. They are competing purchases, which is different.
The Charge 6 is a band. It is small, light, worn all day and all night, and built around steps, heart rate, sleep and general activity. The Forerunner 165 is a running watch with a proper GPS chip, a running-specific interface, Garmin Coach and daily suggested workouts, and it looks and feels like a watch because it is one.
That distinction decides the purchase more than any specification table will. A band that tracks a run approximately is fine if you run occasionally. A watch you find bulky to sleep in is a problem if your main interest is sleep data. Neither of those is a flaw; they are different products aimed at different weeks of your life.
The Numbers
| Fitbit Charge 6 | Forerunner 165 | |
|---|---|---|
| Price | $132.99 | $198.49 |
| Form | Band | Watch, 43mm |
| Built-in GPS | Yes | Yes |
| Running features | Basic | Garmin Coach, workouts |
| Platform | Fitbit / Google | Garmin Connect |
| Subscription for full features | Yes, Premium | No |
| Included trial | 3 months Premium | n/a |
Both have built-in GPS, which is the specification people assume separates them and does not. The real separators are the form factor, the depth of the running features, and the subscription row.
The Subscription Row Is the Hidden Cost
This is the part worth reading twice, because it changes the price comparison materially over a few years.
The Charge 6 includes a three-month Premium membership. Several of the features people buy a Fitbit for, including the deeper sleep analysis and readiness-style scoring, sit behind that membership once the trial ends. Garmin charges nothing for the equivalent: HRV status, Body Battery, sleep staging and training readiness all come with the Forerunner 165 permanently.
So the gap narrows the longer you own them. At purchase the Fitbit is $65 cheaper. Add a couple of years of Premium at its usual rate and the Garmin is the cheaper device, while also being a better running watch. Whether that matters depends entirely on whether you would actually pay for Premium after the trial, and plenty of people happily use a Fitbit on the free tier forever.
We went through the same arithmetic on subscription trackers in our three-year cost breakdown, where the pattern repeats across the category: the cheaper sticker often carries the higher total.
What Neither Measures Well
Worth grounding both before the buying advice, because the marketing on each implies more precision than either delivers.
Both read heart rate optically at the wrist, and both degrade in the same situation: higher intensity, with the sensor shifting against moving skin and tendons sliding underneath. That is a wrist problem rather than a price problem, and a $700 watch has it too.
Sleep is similar. Validation research consistently finds consumer wearables detect sleep versus wake well, typically above 95 percent sensitivity, while agreement on individual sleep stages is considerably weaker, with devices systematically over-labelling sleep. Our guide to the validation research goes through it study by study.
Practical upshot for either device: trust the weekly trend rather than any single night or any single interval, and if you train by heart rate zones, a chest strap is the real accuracy upgrade at this price point. Our heart rate monitor roundup covers that.
The January Problem Neither Device Solves
Worth saying plainly, since this is the time of year most of these get bought.
A tracker is very good at telling you what you did and completely neutral about whether you keep doing it. People buy one in the first week of January, wear it diligently for three weeks, and then stop wearing it at roughly the same time they stop going to the gym. The device did not cause either outcome.
If your honest reason for buying is motivation, the cheaper device is the better bet, because the thing you are testing is whether you keep training, not which platform you prefer. Spend $133 rather than $199 and upgrade in June if you are still at it. That is a better use of the money than buying the more capable device for a routine that does not exist yet, which is the same conclusion we reach in our guide for people starting the gym.
If your reason is that you already train and want better data, ignore all of the above and buy for the features.
Who Should Buy Which
Buy the Charge 6 at $132.99 if you are starting out, walking more, going to the gym, or mainly want steps and sleep. Also buy it if you want something you will genuinely wear to bed, since the band is far easier to sleep in than a 43mm watch, and overnight is where most recovery data comes from. The Google ecosystem integration is a real advantage if you are already in it.
Buy the Forerunner 165 at $198.49 if you are going to run regularly. Garmin Coach, daily suggested workouts and the Garmin Connect platform are genuinely deeper than anything Fitbit offers for running, they cost nothing extra, and the interface is built for the activity rather than adapted to it.
Buy the Garmin anyway if you expect to still be training in two years and would otherwise pay for Fitbit Premium. The subscription arithmetic flips the price advantage within roughly that window.
Buy neither if you already own a working tracker. Replacing one at this tier gains you very little, and a chest strap plus the watch you own fixes the accuracy limitation that neither of these solves. Our gift card guide covers that trade-off at each budget.
Look higher if you want dual-frequency GPS or maps. Neither has them, and our COROS PACE 4 comparison and sub-$200 guide cover that step up.
Wearing It Is the Spec Nobody Lists
A device you take off collects nothing, and this is where the band-versus-watch difference does real work rather than appearing on a table.
The Charge 6 is slim enough that most people forget they have it on, including overnight. That matters more than it sounds, because overnight is where heart rate variability, resting heart rate and sleep data come from, and those are the numbers that actually show a trend over weeks. A 43mm watch on a smaller wrist, in bed, is the most common reason people stop collecting that data.
The Forerunner 165 is a normal-sized running watch and plenty of people sleep in one without noticing. But it is a real consideration rather than a detail, and it is worth being honest that no amount of extra features compensates for a device sitting in a drawer.
Charging habits matter the same way. Both need a charge roughly weekly, and the gap in that routine tends to land overnight, which is exactly when you wanted the data. Charging while you shower rather than while you sleep solves it for either device.
How We Evaluate
We do not train with either device and we will not imply we do. Prices and specifications come from the sellers’ own Amazon listings, checked on 18 October 2026: Fitbit Charge 6 at $132.99 including a three-month Google Health Premium membership, and Garmin Forerunner 165 at $198.49 with built-in GPS, Garmin Coach and daily suggested workouts. Accuracy statements come from published validation research on consumer wearables, covered with citations in the linked guide. The subscription comparison reflects which features each manufacturer places behind a membership according to its own materials. Recommendations are editorial judgment, labelled as such, and both brands discount frequently, which our price tracking covers.
FAQ
Is the Fitbit Charge 6 or Garmin Forerunner 165 better for beginners?
The Charge 6 at $132.99, unless you are specifically taking up running. It is cheaper, far easier to wear overnight, and built around the steps, heart rate and sleep data most beginners actually look at. The Garmin’s advantages are running-specific.
Does the Fitbit Charge 6 need a subscription?
Not to function, but several features people buy it for sit behind Fitbit Premium once the included three-month membership ends. Garmin provides its equivalents, including HRV status and Body Battery, permanently at no extra cost.
Do both have GPS?
Yes, both have built-in GPS, so neither needs your phone to record a route. The difference is in the running features built on top of it rather than in whether the location data exists.
Which is better for sleep tracking?
The Charge 6 in practice, mainly because a slim band is easier to sleep in than a 43mm watch, and a device you wear beats a device you take off. Neither is precise at sleep-stage level, so read the weekly trend rather than any single night.
Should I buy a tracker to help me stick with training in January?
If motivation is the honest reason, buy the cheaper one. A tracker records what you did and is neutral on whether you continue. Spending $133 rather than $199 and upgrading later is the better bet while you find out.