Polar Street X launched in March 2026 as the brand’s first watch built specifically for hybrid, urban training rather than single-discipline endurance sport.
| General | |
|---|---|
| Manufacturer | Polar |
| Type | Urban sports GPS watch |
| Series | Sports Series (new product line) |
| Released | March 2026 |
| Price at launch | GBP 219.00 / EUR 249.90 / USD 249.90 |
| Predecessor | None. Street X is a new product category for Polar. |
| Successor | Not yet announced. |
| Sizes | 45mm (single size) |
| Colours | Night Black, Snow White, Forest Green |
Specifications and features as at launch.
Jump to: Expert opinion | Specifications | Battery life | Features | Activity profiles | Software updates | Further reading
Expert opinion
Street X is Polar’s first watch built for a different buyer than the rest of the range: an urban, multi-activity user rather than a single-discipline endurance athlete. It carries the same recovery science as the Vantage and Grit X ranges (Training Load Pro, Nightly Recharge, Sleep Plus Stages, FuelWise) with no subscription paywall, at roughly a third of the price of the Grit X2 Pro.
The trade-off is hardware generation. Street X uses the Precision Prime Gen 3.5 optical sensor, one generation behind the Elixir platform in the Vantage V3 and Grit X2, and its GNSS chipset is single-frequency with no GLONASS support, where the Vantage and Grit X2 models carry dual-frequency positioning across five constellations. There are no onboard maps; navigation is limited to route guidance imported via Komoot or Polar Flow, plus a compass and barometer. An integrated LED flashlight with a red-light mode and a MIL-STD-810H rating are unique to Street X within the current Polar watch range.
Specifications
| Display | |
|---|---|
| Size | 1.28 inch |
| Type | AMOLED, optional always-on |
| Resolution | 416 x 416 pixels |
| Lens | Gorilla Glass 3.0 |
| Touchscreen | Yes |
| Physical | |
| Case size | 45mm (single size) |
| Thickness | 13.8mm |
| Weight | 48g with strap, 28g without |
| Case material | Bio-based plastic |
| Bezel material | Bio-based plastic |
| Water rating | WR50 |
| Military standard | MIL-STD-810H |
| © the5krunner. Link required. | |
| Sensors and positioning | |
| GPS | Single-frequency, multi-constellation: GPS, Galileo, BeiDou, QZSS. No GLONASS. |
| Heart rate | Precision Prime Gen 3.5 optical |
| Other sensors | Skin temperature (Gen 1), barometer, compass, accelerometer, gyroscope |
| Connectivity and storage | |
| Connectivity | Bluetooth LE |
| Charging | Proprietary magnetic / USB-C |
| Storage | 32MB |
| Music storage | No |
| Onboard maps | No |
Battery life
| Mode | Battery life |
|---|---|
| Smartwatch | Up to 10 days |
| Performance training mode (GPS and HR) | Up to 43 hours |
| Eco training mode | Up to 170 hours |
| © the5krunner. Link required. | |
In the5krunner’s own testing, a 20-hour GPS cycling session with the always-on display disabled consumed 57 per cent of a full charge, close to Polar’s performance training mode claim.
Features
Training and recovery
- Training Load Pro (cardio, muscle and perceived load)
- Nightly Recharge
- Sleep Plus Stages
- Nightly skin temperature
- FitSpark daily workout suggestions
- FuelWise nutrition guidance
- Work-Rest Guide for strength training
- Wrist-based running power
- Structured running programmes, 5K to marathon
- Season Planner
Navigation
- Route guidance imported via Komoot or Polar Flow
- Turn-by-turn directions from a preloaded route
- Back-to-start
- Compass and barometer
- No onboard maps
Connectivity and smart features
- Integrated LED flashlight, four white brightness levels plus a red-light mode
- Polar Flow app
- Strava integration, 60-day trial
- Komoot integration
- No music storage
- No contactless payment on the watch. Polar sells a payment-enabled strap as an accessory, designed for a different model.
- No TrainingPeaks sync
Activity profiles
Polar lists over 170 sport profiles for Street X. The full list, drawn from Polar’s own sport profile categories, is below.
| Category | Profiles |
|---|---|
| Running | Running, Jogging, Road running, Track&field running, Trail running, Ultra running, Cross-country running, Treadmill running, Stair workout |
| Cycling | Cycling, Road cycling, Mountain biking, Gravel cycling, Indoor cycling, Electric biking, Kickbiking |
| Swimming | Swimming, Pool swimming, Open water swimming |
| Multisport | Triathlon, Off-road triathlon, Duathlon, Off-road duathlon |
| Urban and street sports | Skateboarding, Inline skating, Roller skating, Ice skating, Calisthenics, Rope skipping, Street (dancing), Obstacle course racing, Esports |
| Gym and fitness | Strength training, Functional training, Circuit training, Bootcamp, Kettlebell, High-intensity interval training, Cross-trainer, Group exercise, Spinning, Aerobics, Aqua fitness, the full LES MILLS class range (BARRE, BODYATTACK, BODYBALANCE, BODYCOMBAT, BODYJAM, BODYPUMP, BODYSTEP, CORE, GRIT Athletic, GRIT Cardio, GRIT Strength, RPM, SH’BAM, SPRINT, THE TRIP, TONE) |
| Yoga and mobility | Yoga, Pilates, Stretching, Body&Mind, Core, Mobility (static), Mobility (dynamic) |
| Outdoor and walking | Hiking, Nordic walking, Rucking, Walking, Snowshoe trekking, Climbing (indoor), Climbing (outdoor), Golf, Disc golf, Riding, Dog agility, Orienteering |
| Winter sports | Downhill skiing, Backcountry skiing, Telemark skiing, Snowboarding, Classic XC skiing, Freestyle XC skiing, Biathlon, Ski machine |
| Water sports | SUP, Water running, Kayaking, Canoeing, Sailing, Surfing, Kitesurfing, Wakeboarding, Water skiing, Windsurfing |
| Team and racket sports | Football, Basketball, Volleyball, Beach volley, Handball, Ice hockey, Field hockey, Floorball, Rugby, Cricket, Baseball, Tennis, Padel, Pickleball, Squash, Table tennis, Badminton, Beach tennis |
| Other | Boxing, Kickboxing, Fitness boxing, Martial arts, Judo, Taekwondo, Golf, Motor sports, Enduro, Motocross, Car racing, Curling, Shooting (indoor), Shooting (outdoor) |
Polar Street X software updates
The current Polar Street X software is version 6.0.18. Polar is still updating the Street X, with 1 software release since May 2026. This section is updated when Polar releases a new version.
| Current version | 6.0.18, released 30 September 2026. |
| Public beta | No public beta. Polar does not run a public beta for this model. |
| Last update | 6.0.18 on 30 September 2026. |
Features added since May 2026
- 6.0.18, 30 September 2026.
- Seven-day trend graphs for sleep (Nightly Recharge, ANS charge, sleep duration), nightly heart rate variability, running performance index, weight and ECG test history
- Optical heart rate algorithm improvements to reduce inconsistent readings
- Charge limit of 80% to extend long-term battery life
- The LIGHT button becomes a Custom button, assignable separately for time mode and each sport profile (backlight is the default)
- Sport settings can now be changed on the watch during setup, before training or while paused
- Quick weight entry from the quick settings menu, with optional reminders
- Refreshed menu with new colours, smoother transitions and a reorganised structure
- Extra background styles for the digital watch face
Full version history, 1 release including betas and fixes
| Version | Type | Date | What changed |
|---|---|---|---|
| 6.0.18 | Stable | 30 September 2026 | Seven-day trend graphs for sleep (Nightly Recharge, ANS charge, sleep duration), nightly heart rate variability, running performance index, weight and ECG test history. Optical heart rate algorithm improvements to reduce inconsistent readings. |
Version history is recorded from May 2026. See also known problems and fixes.
Further reading
- the5krunner Polar Street X review
- Polar Street X: first thoughts
- Polar Street X battery and heart rate test
- Polar watch specifications
Related watches
- Street X has no direct predecessor. It is a new product category for Polar.
- Also consider: Garmin Instinct 3 AMOLED, the closest rugged-watch comparison by price, reviewed in full here.
- Within the Polar range: the Polar Vantage M3 adds dual-frequency GPS, offline maps and the newer Elixir sensor platform for around GBP 130 more.
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin from any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafe stick swimmers and runners carry. I use it.
- Speedo earplugs: Fewer ear infections and no cold-water dizziness. I use them.
- Dryrobe Advance: My winter changing robe for open-water swims. I use one. A cheaper option is the AONYIYI changing robe.
- Maurten: Race fuel that stays easy on the stomach. I use them.
- Beet It Sport nitrate shots: Beetroot shots I take in the days before a race. I use them.
- Garmin charging puck: The quickest way to top up before a session. I use one.
- Injinji: Toe socks that stop rubbing, so you run more. I use them.
- Ultimate toe protectors: Stop black toenails on long runs. They work. I use them.
- Compressport R2 v2 calf sleeves: My calf sleeves of choice. I use them.
- Cellucor C4: My pre-workout before hard sessions.
- TPU tubes: Schwalbe Aerothan, Tubolito and Pirelli SmarTube. Light, tiny spares. I use all three.
- G8 insoles: Adjustable insoles that are good. I use them.
- Cycplus Cube: A 97g electric pump that gets a road tyre rideable in two minutes. I carry one. 5% off with code THE5KRUNNER.
Watches and sensors
- Polar H10: My daily driver for waking HRV.
- Polar Verity Sense: My backup arm-worn HR sensor.
- Nomad bedside charger: Charges my iPhone and Apple Watch overnight. I use it, and many of their bands.
- Train.Red: The best muscle oxygen sensor I’ve used.
- Tymewear: Accurate heart rate and reliable ventilatory zones. I use it to pace endurance rides over an hour.
- Garmin Forerunner 970: A pro-grade triathlon watch. I use this.
- Apple Watch Ultra 4: My daily smartwatch. No phone needed on rides.
- Garmin Fenix 9 Pro: I’ve just bought one.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions.
- Helmets: Specialized S-Works Evade 3 for road riding, and Rudy Project Wing for TT-style races. I use both.
- Ravemen FR300: A front light that mounts under your Garmin or Wahoo. I use one.
- Wahoo TRACKR Radar: I use it on one bike and Varia on the other. They perform the same.
- Garmin Varia RTL515: Radar that warns you of cars from behind. I use this model.
- Wahoo ELEMNT Roam 3: The bike computer that’s easy to use. I use mine on most rides.
- Favero Assioma Pro RS2: Accurate power pedals that swap easily between bikes. I use this model.
Home and indoor training
- NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
- Google Wifi: Keeps Zwift connected in my pain cave. I use it.
- Apple TV 4K: Zwift on the big screen. I use two.
- Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.
Health, recovery and sleep
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet.
- hDrop: Measures my sweat loss in summer and indoors.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
Reader-Powered Content
This content is not sponsored. It’s mostly me behind the labour of love, which is this site, and I appreciate everyone who supports it.
Support the site: Follow (free, fewer ads) · Subscribe (paid, ad-free) · Buy Me A Coffee
Written by real people, with AI assistance. Fact-checked and verified for originality. See the Editorial Policy. FTC: Affiliate Disclosure — some links pay commission. As an Amazon Associate, I earn from qualifying purchases.
