Compare Garmin Forerunner 165 vs Garmin Forerunner 255

P1 Garmin Forerunner 165
P2 Garmin Forerunner 255

Comparison Takeaways

Garmin Forerunner 165

Where It Has the Edge

  • smartphone notifications is 5.0 vs 3.2. Smartphone notifications were described as reliable and easier to read on the AMOLED display.
  • stress tracking is 4.0 vs 2.3. Stress tracking was mentioned as part of the watch's helpful health-glance system for knowing when to ease off.
  • brightness is 4.7 vs 3.1. Brightness was strongly praised in sunlight and adaptive lighting conditions.
  • mapping and navigation is 4.0 vs 2.7. Mapping and navigation were useful for breadcrumb routes and GPX/course following, but the lack of full maps was...

Garmin Forerunner 255

Where It Has the Edge

  • size options is 4.5 vs 3.2. Size options were welcomed, especially the smaller 255S and same-price choice between sizes.
  • third-party app support is 4.5 vs 3.3. Third-party app support was praised in one walkthrough for the availability of free apps, glances, watch faces, and...
  • materials quality is 3.8 vs 2.8. Materials quality was mixed: plastic could feel cheaper, but reviewers also found the design durable and well made.
  • onboard music storage is 4.2 vs 3.2. Onboard music was generally liked for phone-free use and Spotify playback, though one reviewer found the storage allowance...
Average score
Product 1: Garmin Forerunner 165
4.2
Product 2: Garmin Forerunner 255
4.1
activity auto-detection
Product 1: Garmin Forerunner 165
No score yet
Product 2: Garmin Forerunner 255
4.6

Activity auto-detection had limited but positive support, with one reviewer saying it suited interval training well.

app ecosystem
Product 1: Garmin Forerunner 165
3.3

The app ecosystem was useful through Connect IQ and Garmin features, but Garmin's broader platform could still feel intimidating.

Product 2: Garmin Forerunner 255
2.5

The app ecosystem was mixed to weak: one reviewer saw only a modest app selection, while another strongly disliked the meditation app.

band quality
Product 1: Garmin Forerunner 165
4.1

Band quality was mostly comfortable and flexible, but one reviewer warned the stock strap needs frequent washing to avoid irritation.

Product 2: Garmin Forerunner 255
4.6

Band quality was praised for comfort, quick release, and enough notches to dial in fit.

battery life
Product 1: Garmin Forerunner 165
4.2

Battery life was generally good for an AMOLED Garmin and daily training, but reviewers flagged limits for long adventures, always-on use, or heavy GPS/music.

Product 2: Garmin Forerunner 255
4.6

Battery life was a strong consensus positive, often lasting a week or more and improving greatly over older models.

blood oxygen tracking
Product 1: Garmin Forerunner 165
4.0

Blood oxygen tracking was treated as a useful extra by reviewers who valued the reassurance, though broader accuracy was not deeply tested.

Product 2: Garmin Forerunner 255
3.2

Pulse Ox was mixed: one reviewer said still readings can be good, while another warned watch-based SpO2 was not consistent enough to rely on.

Bluetooth connectivity
Product 1: Garmin Forerunner 165
4.0

Bluetooth headphone pairing was reported to work without problems.

Product 2: Garmin Forerunner 255
4.6

Bluetooth and sensor connectivity had limited but positive opinionated support from one reviewer who had no problem connecting external devices.

brightness
Product 1: Garmin Forerunner 165
4.7

Brightness was strongly praised in sunlight and adaptive lighting conditions.

Product 2: Garmin Forerunner 255
3.1

Brightness was a limitation for some reviewers, especially compared with AMOLED displays, though brightness controls helped.

build quality
Product 1: Garmin Forerunner 165
4.3

Build quality was viewed as solid and well-made for a lightweight running watch.

Product 2: Garmin Forerunner 255
4.5

Build quality had limited but positive support, with buttons described as tactile and not cheap.

button controls
Product 1: Garmin Forerunner 165
4.9

Button controls were a major strength, especially for workouts, gloves, sweat, rain, and avoiding touchscreen reliance.

Product 2: Garmin Forerunner 255
4.3

Button controls were polarizing but mostly positive: many liked reliability during workouts, while some found the buttons numerous or squishy.

charging convenience
Product 1: Garmin Forerunner 165
3.3

Charging convenience was mixed: secure contacts helped, but the proprietary/short cable was a drawback.

Product 2: Garmin Forerunner 255
3.3

Charging convenience was mixed because proprietary charging annoyed reviewers, but long battery life reduced how often it mattered.

charging speed
Product 1: Garmin Forerunner 165
4.5

Charging speed was praised in the reviews that discussed it, ranging from under two hours to very fast top-ups.

Product 2: Garmin Forerunner 255
4.5

Charging speed was positively supported, from full charging in a couple of hours to 50% in under half an hour.

coaching features
Product 1: Garmin Forerunner 165
4.6

Coaching and structured workouts were praised as approachable, flexible, and valuable for beginner and intermediate runners.

Product 2: Garmin Forerunner 255
4.5

Coaching features were a highlight when tied to race planning and adaptive workouts, though one reviewer found basic suggested paces too slow.

comfort
Product 1: Garmin Forerunner 165
4.9

Comfort was consistently excellent, with reviewers praising the lightweight feel for all-day wear and sleep.

Product 2: Garmin Forerunner 255
4.7

Comfort was one of the most consistent positives, with reviewers calling it lightweight, sleep-friendly, and easy to forget.

companion app quality
Product 1: Garmin Forerunner 165
4.1

Garmin Connect was seen as powerful and useful, with cleaner or comprehensive analysis, though one reviewer found the redesign not much easier.

Product 2: Garmin Forerunner 255
4.7

The Garmin Connect companion app was strongly praised for layout, depth, navigation, and historic data access.

contactless payments
Product 1: Garmin Forerunner 165
4.0

Garmin Pay was viewed as a straightforward, effective contactless payment feature.

Product 2: Garmin Forerunner 255
3.6

Garmin Pay was useful when supported, but bank compatibility made the contactless payment experience inconsistent.

cross-platform compatibility
Product 1: Garmin Forerunner 165
No score yet
Product 2: Garmin Forerunner 255
4.8

Cross-platform compatibility was praised in one review for strong Android and iOS integration.

customization options
Product 1: Garmin Forerunner 165
4.7

Customization was a strength, from watch faces and widgets to activity screens and data pages.

Product 2: Garmin Forerunner 255
4.7

Customization was a standout, especially data screens, watch settings, and phone-based configuration.

data privacy
Product 1: Garmin Forerunner 165
No score yet
Product 2: Garmin Forerunner 255
4.3

Data privacy had limited positive support from a walkthrough praising notification privacy mode.

display quality
Product 1: Garmin Forerunner 165
4.9

Display quality was a standout strength thanks to a crisp, vibrant AMOLED screen, though one reviewer still preferred MIP for always-visible use.

Product 2: Garmin Forerunner 255
3.8

Display quality was split between readable sports utility and muted MIP visuals compared with brighter AMOLED displays.

durability
Product 1: Garmin Forerunner 165
4.8

Durability was reassuring, with reviewers reporting no concerns and even real-world abuse without damage.

Product 2: Garmin Forerunner 255
4.9

Durability was praised in longer-use reviews, with little visible wear and strong everyday resilience.

fit
Product 1: Garmin Forerunner 165
4.8

Fit was strong for many wrists, with secure wear and little slipping, though the single case size remained a caveat.

Product 2: Garmin Forerunner 255
4.3

Fit was praised for adjustability and secure sports use across different wrist sizes.

fitness tracking accuracy
Product 1: Garmin Forerunner 165
4.8

Fitness tracking accuracy was praised for broad data quality and even strength-training rep counting in testing.

Product 2: Garmin Forerunner 255
4.4

Fitness tracking accuracy was supported by one reviewer who found the device respectable across demanding sports testing.

GPS accuracy
Product 1: Garmin Forerunner 165
4.5

GPS accuracy was one of the strongest themes, with most reviewers finding reliable tracks even without dual-band GPS; a few dense-terrain issues remained.

Product 2: Garmin Forerunner 255
4.8

GPS accuracy was one of the clearest strengths, with reviewers repeatedly calling it extremely accurate, impressive, or among the best they had tested.

health tracking accuracy
Product 1: Garmin Forerunner 165
4.5

Reviewers described the Forerunner 165 as having reliable sensors and detailed data collection for general health and fitness tracking.

Product 2: Garmin Forerunner 255
3.6

Health tracking was viewed as useful when it built an accurate day-to-day picture, but one reviewer flagged stair detection as clearly wrong.

heart rate accuracy
Product 1: Garmin Forerunner 165
4.3

Heart-rate accuracy was generally praised across runs, rides, and intervals, with only occasional optical-sensor lag or spikes.

Product 2: Garmin Forerunner 255
4.6

Heart-rate accuracy drew broad praise across runs, rides, and workouts, with reviewers often finding it close to chest straps while still noting optical-sensor caveats.

mapping and navigation
Product 1: Garmin Forerunner 165
4.0

Mapping and navigation were useful for breadcrumb routes and GPX/course following, but the lack of full maps was a repeated limitation.

Product 2: Garmin Forerunner 255
2.7

Navigation was mixed: one reviewer liked course waypoint support, but most criticism focused on missing full maps and basic breadcrumb guidance.

materials quality
Product 1: Garmin Forerunner 165
2.8

Materials quality was mixed: plastic kept it light and affordable but felt less premium.

Product 2: Garmin Forerunner 255
3.8

Materials quality was mixed: plastic could feel cheaper, but reviewers also found the design durable and well made.

menu navigation
Product 1: Garmin Forerunner 165
4.5

Menu navigation was considered intuitive after a short adjustment period.

Product 2: Garmin Forerunner 255
3.9

Menu navigation was mixed: experienced users may find it smooth, but feature depth and buttons create a learning curve for newcomers.

music controls
Product 1: Garmin Forerunner 165
2.0

Music controls were criticized as unintuitive during runs.

Product 2: Garmin Forerunner 255
No score yet
onboard music storage
Product 1: Garmin Forerunner 165
3.2

Onboard music storage drew split views: handy or smooth for some, but tedious and poor value for others.

Product 2: Garmin Forerunner 255
4.2

Onboard music was generally liked for phone-free use and Spotify playback, though one reviewer found the storage allowance limiting.

operating system experience
Product 1: Garmin Forerunner 165
4.0

The operating experience was familiar and straightforward for Garmin users.

Product 2: Garmin Forerunner 255
No score yet
outdoor visibility
Product 1: Garmin Forerunner 165
5.0

Outdoor visibility was excellent in direct sun and bright conditions.

Product 2: Garmin Forerunner 255
4.5

Outdoor visibility was a consistent strength, with the MIP display repeatedly praised for sunlight readability.

pairing reliability
Product 1: Garmin Forerunner 165
4.0

Pairing reliability for headphones was described as generally solid.

Product 2: Garmin Forerunner 255
2.7

Pairing reliability had one negative report where phone syncing stopped until the watch was rebooted.

recovery insights
Product 1: Garmin Forerunner 165
3.1

Recovery insights were useful but clearly limited versus higher Forerunners, with some reviewers calling out missing readiness/load tools or odd recovery estimates.

Product 2: Garmin Forerunner 255
4.1

Recovery insights were praised for HRV, Body Battery, and training context, but several reviewers wanted Training Readiness or found the data less user-friendly.

reliability
Product 1: Garmin Forerunner 165
5.0

Reliability was praised in workout use, with one reviewer reporting no issues with stability.

Product 2: Garmin Forerunner 255
4.4

General reliability had limited positive evidence, with one reviewer calling it a reliable way to track workouts.

safety features
Product 1: Garmin Forerunner 165
4.0

Safety features such as LiveTrack were valued for sharing location during activities.

Product 2: Garmin Forerunner 255
4.5

Safety features had limited but positive support from one reviewer who valued Garmin's personal safety tools when carrying a phone.

size options
Product 1: Garmin Forerunner 165
3.2

Size options were limited because the watch comes in only one size, though one reviewer liked the in-between fit.

Product 2: Garmin Forerunner 255
4.5

Size options were welcomed, especially the smaller 255S and same-price choice between sizes.

sleep tracking accuracy
Product 1: Garmin Forerunner 165
3.8

Sleep tracking was mostly viewed as useful and directionally accurate, though one reviewer reported a poor night that the watch missed.

Product 2: Garmin Forerunner 255
4.2

Sleep tracking was generally considered improved and useful, with several reviewers saying sleep times matched reference devices, though some still saw overestimation or limits.

smartphone notifications
Product 1: Garmin Forerunner 165
5.0

Smartphone notifications were described as reliable and easier to read on the AMOLED display.

Product 2: Garmin Forerunner 255
3.2

Notifications worked for basic phone alerts, but reviewers noted limits such as no replies, weak granularity, and platform restrictions.

smartwatch features
Product 1: Garmin Forerunner 165
4.0

Smartwatch features were considered respectable for a training watch, especially notifications, Garmin Pay, music features, and basic phone-linked tools.

Product 2: Garmin Forerunner 255
3.0

Smartwatch features were repeatedly described as adequate rather than rich, especially compared with Apple Watch-style devices.

software smoothness
Product 1: Garmin Forerunner 165
4.5

Software smoothness was praised as simple, fast, and accurate in use.

Product 2: Garmin Forerunner 255
4.6

Software smoothness was viewed positively, with smooth menus and real-time settings sync called out.

step counting accuracy
Product 1: Garmin Forerunner 165
4.5

Step counting was reported as close to other tested devices.

Product 2: Garmin Forerunner 255
No score yet
stress tracking
Product 1: Garmin Forerunner 165
4.0

Stress tracking was mentioned as part of the watch's helpful health-glance system for knowing when to ease off.

Product 2: Garmin Forerunner 255
2.3

Stress tracking was weakly received in the available opinionated evidence, with one reviewer saying the data did not feel interesting or useful.

style and design
Product 1: Garmin Forerunner 165
4.5

Style and design were viewed as slim, low-profile, sleek, and suitable for daily wear, though still sporty.

Product 2: Garmin Forerunner 255
3.4

Style was mixed: reviewers liked the clean utilitarian look, but some called it no looker or plainly sporty.

third-party app support
Product 1: Garmin Forerunner 165
3.3

Third-party app/widget support was available and sometimes useful for tailoring data, though one reviewer did not find it especially useful.

Product 2: Garmin Forerunner 255
4.5

Third-party app support was praised in one walkthrough for the availability of free apps, glances, watch faces, and music apps.

touchscreen responsiveness
Product 1: Garmin Forerunner 165
4.6

Touchscreen responsiveness was widely praised, including smooth swiping, reliable taps, and usability with gloves or wet screens.

Product 2: Garmin Forerunner 255
No score yet
user interface
Product 1: Garmin Forerunner 165
4.7

The interface was repeatedly described as simple, approachable, and easy to use.

Product 2: Garmin Forerunner 255
4.3

The interface was seen as useful and well-presented for workout summaries and glanceable data.

value for money
Product 1: Garmin Forerunner 165
4.6

Value for money was one of the strongest areas, with reviewers repeatedly calling it a high-value or sweet-spot Garmin.

Product 2: Garmin Forerunner 255
4.4

Value was praised by most reviewers because the Forerunner 255 brought high-end training and GPS features to a midrange price, though some still found it expensive.

watch face quality
Product 1: Garmin Forerunner 165
5.0

Watch face quality was praised for full customization.

Product 2: Garmin Forerunner 255
4.0

Watch faces were mixed: reviewers liked the defaults and customization, but photo faces could look poor on the MIP display.

water resistance
Product 1: Garmin Forerunner 165
4.3

Water resistance was considered more than enough for rain, sweat, showering, and swimming use.

Product 2: Garmin Forerunner 255
4.3

Water resistance had limited positive support from swim and 5ATM comments indicating issue-free water use.

wellness insights
Product 1: Garmin Forerunner 165
4.5

Wellness insights such as Morning Report and Body Battery were considered fun, useful, and sometimes addictive.

Product 2: Garmin Forerunner 255
4.5

Wellness insights such as Morning Report and Body Battery were usually praised as helpful, insightful, and easy to glance at.

Wi-Fi connectivity
Product 1: Garmin Forerunner 165
2.0

Wi-Fi/music setup drew criticism when troubleshooting made the watch appear connected even though playlist syncing failed.

Product 2: Garmin Forerunner 255
No score yet
workout tracking variety
Product 1: Garmin Forerunner 165
3.6

Workout variety covers most mainstream running, gym, cycling, swimming, and fitness needs, but reviewers consistently noted missing triathlon or backcountry profiles.

Product 2: Garmin Forerunner 255
4.6

Workout variety was a major strength, especially for running and triathlon, though one reviewer missed a kayaking profile.