It's October, and while the best of the year's weather is behind us, if you're a keen runner your thoughts might already be turning to next spring. April onwards is marathon season, and if you've entered the New York or Berlin events, London's mammoth two-day event, or one of the many other marathons held in cities around the world, you'll want to start getting race-ready over winter.Alternatively, you might be getting fit for the first time, or after a long absence, and deciding to do what the kids call a 'winter arc' after a summer of indulgence.The best Garmin watches are perfect tools for runners of all levels preparing for the next step, and there are tons of deals up for grabs right now at retailers, including Amazon, ahead of its Big Deal Days sales event next week. I've reviewed almost every modern Garmin watch, and tested them all, so I'm well qualified to help you find your perfect watch at a great price. I'm seeing discounts on loads of Garmin watches, such as the high-end Garmin Fenix 8 (we gave this incredible watch a full five stars in our Garmin Fenix 8 review), the budget Garmin Vivoactive 5, and everything in between. I've picked the eight watches getting the best discounts on Amazon, and I've applied our price-checking tool to them all. If those prices change, or a better deal pops up elsewhere, you'll always see the best deal. Scroll down to see the best deals on the eight Garmins I recommend to get race-ready for less this winter. Today's best Garmin watch deals Garmin Fenix 8 (47mm) ProsAdvanced GPSNew heart rate sensorGarmin’s trademark modularityConsExpensiveBulky Garmin Vivoactive 5 ProsUpgraded AMOLED displayOn-watch music streamingPowerful health and sports tracking optionsConsMinimal buttonsNo barometric altimeterNo Training Readiness Garmin Forerunner 170 GPS Watch ProsLight and smallish-sizedGreat performanceSmart features are usefulMusic download includes streaming playlistsConsHighly priced compared with 70No microphone/speaker/voice assistant Garmin Forerunner 70 GPS Watch ProsStill a solid performer without Garmin’s latest sensorsLots of new training and smartwatch features addedSharp, vibrant AMOLED displayConsMore expensive than the Forerunner 55Doesn’t get all of Garmin’s latest smartwatch featuresNo open water or triathlon modes Garmin Forerunner 265s ProsFirst small Forerunner with a touchscreenBright, crisp AMOLED visualsSmall and prettyRun button easier to use with glovesConsMore expensive than 255 & 255SScreen boost means (slightly) worse battery life Garmin Forerunner 165 (43mm) ProsRetains many previously-premium training featuresGood-looking AMOLED touchscreen13 days of battery lifeConsNot cheap enough to replace the Forerunner 45 or 55Music storage is extra Garmin Instinct 3 (45mm) ProsChoice between AMOLED and MIP SolarBuilt-in flashlightAll-new fitness toolsConsNo topo mapsPolymer, not metal casing Garmin Instinct 3 Tactical ProsChoice between AMOLED and MIP SolarBuilt-in flashlightAll-new fitness toolsConsNo topo mapsPolymer, not metal casing