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The Garmin GPSMAP 66s offers unparralled navigation support for off-road exploration in the Great British Outdoors. Arriving preloaded with TOPO PRO GB basemaps, the device also provides access to BirdsEye satellite imagery for accurate, photographic representations of the surrounding area. These can be downloaded to help find trails, campsites and set waymarks. The large colour display is easily readable in natural sunlight to help you plan and execute your route. If you meet obstacles along the way then the device’s military-grade shock, heat and water-resistance will protect, just as the integrated LED torch and SOS beacon helps protect you. Never hike blind again.

Product code: 135727

Key Features

  • Multiple Global Navigation Satellite System - tracks your location and movements in a wider range of challenging environments than GPS alone
  • Preloaded TOPO PRO GB 1:50k mapping - includes turn-by-turn navigation in GB national parks
  • 3” sunlight-readable colour display
  • 3-axxis compass and barometric altimeter locates with precision accuracy
  • Access to BirdsEye satellite imagery - direct-to-device download without annual subscription
  • Expanded wireless connectivity - supports Active Weather forecasts and Geocaching Live
  • Bluetooth compatible with Android™ and iOS® smartphone devices
  • Compatible with Garmin Explore™ website and app
  • Survival features - includes LED flashlight and SOS beacon
  • Thermal, shock and water-resistant
  • Compatible with night-vision goggles
  • Dimension: 6.2cm x 16.3cm x 3.5cm
  • Display resolution: 240 x 400px
  • Memory: 16GB
  • Battery life: up to 16 hours (GPS mode) 1 week (Expedition mode)
  • Weight: 230g
Running, Cycling, Fitness

Delivery & Returns

This product qualifies for the following delivery methods

Standard Delivery (FREE)


Delivered by Hermes. Delivery will take up to 4 days and will arrive between 8am and 8pm, including weekends.

Collect from Store (FREE)


No need to wait at home, get your order delivered from our warehouse to a store of your choice. With updates every step of the way so you know when it's time to collect.

Standard Next Day Delivery (£5.95)


Delivered by Hermes. Orders must be placed before 6pm to arrive the next day. Next day cannot be offered in the following areas, and will be attempted within 48 hours: BT (all Northern Ireland), GY, IM, JE, KW11-17, HS, PH32-35, ZE.

Premium Next Day Delivery (£6.95)


Delivered by DPD. Orders must be placed before 6pm to arrive the next day. Next day cannot be offered in the following areas, and will be attempted within 48 hours: BT (all Northern Ireland), GY, IM, JE, KW11-17, HS, PH32-35, ZE.

International delivery

From £4.99 to over 200 countries worldwide. Some restrictions apply.


Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 28 days of delivery or collection.


Overall Rating

4.0 stars 4.0 / 5 (based on 1 Review)
Write a review
4 out of 5

Not used extensively or in anger yet. Feels good in hand, working as expected. Occasional software glitch causes unit to switch off while interacting with menus - reported elsewhere by other users, expecting this to be resolved by Garmin in future software/firmware update.

Q&A (2)

Does this product include any ordnance survey mapping at all? I cannot find if topo GBP pro has this or not. Thanks, Joe

15th Aug 2019, submitted by Joe Jackson

Hello Joe. This does not have any form of OS maping but it does come with TOPO mapping and this offers you large areas of your choice at a 1:50k scale, this can be selceted when you are setting up the device.You can buy extra mapping i the future if you need. I hope this helps.

15th Aug 2019
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Will the micro sd card from my old etrex30 with full uk OS 1:50,000 mapping work in this?

26th Feb 2019, submitted by Sean

Hi Sean. Thank you for getting in touch with us with your question. Yes the Micro SD card will work in the new 66S, the 66S does come with Topo Mapping that offers a slightly different and better view of the map. I hope this helps.

27th Feb 2019
1 of 1 people found this question useful.
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