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Ships within 48 hours · Estimated delivery Jul 2 - Jul 7
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Description
swiss tracker gps fahrrad Gemstone Bike GPS TrackerGemstone Bike Subscription Free 4G GPS Tracker Protect your ride with the Gemstone Bike, a high performance 4G GPS tracker designed for eBikes, cargo bikes, e scooters, and strollers. Engineered by Copenhagen Trackers, this discreet device offers a security solution with NO monthly fees or hidden SIM subscription. Key Features Up to 6 Year Battery Life: Industry leading power allows for up to 6 years of tracking (at 1 position per day). No Monthly
Gemstone™ Bike | Subscription-Free 4G GPS Tracker
Protect your ride with the Gemstone™ Bike, a high performance 4G GPS tracker designed for eBikes, cargo bikes, e-scooters, and strollers. Engineered by Copenhagen Trackers, this discreet device offers a security solution with NO monthly fees or hidden SIM subscription.
Key Features
- Up to 6-Year Battery Life: Industry-leading power allows for up to 6 years of tracking (at 1 position per day).
- No Monthly Fees: Includes a free lifetime SIM card with global 4G/LTE-M coverage in over 150 countries.
- Tamper-Resistant Security: The lightweight, compact unit mounts securely to you frame using included safety screws to prevent theft and tampering.
- Indoor Tracking Possible: Pinpoint your bike outdoors via GPS, and with a Premium upgrade allow WiFi-positioning, helping you locate your eBike in basements.
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Danish Engineering: Developed and assembled in Denmark, out trackers are IP68 waterproof and dust-proof, ensuring reliability in any weather.
Technical Specifications
- Connectivity: 4G LTE-M, NB-IoT, and 2G
- Size: 7.7 x 4.7 x 5.7 CM | Weight: 101 G.
- Coverage: 150+ countries
Stop worrying about bike theft and join over 100,000 customers who trust Copenhagen Trackers to keep their valuables safe.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 866 reviews
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Product Reviews
★★★★★ 5
Great for side sleeper
Size: Sapphire King
I am loving this pillow. I waited a few months to see how I would feel about it, because I definitely did not like solid foam pillows previously. I’m a side sleeper, and my pillows were discontinued from a different bedding company. I tried a few others in the interim and was not happy with the support for my neck. Tried this one and I really love the shredded foam. It supports my neck and my head, it’s comfortable. It is movable if I need support in a certain position. It has extra fill if needed. Super happy with this purchase.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Best Pillow Ever
Size: Sapphire Queen
Im in love...better then high end pillows and at a fraction of the cost. These are the only pillows I will ever buy again!!!
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Reviewed in the United States on May 27, 2026
★★★★★ 3
Not cooling
Size: Sapphire Queen
We have waited to give a review. These 2 pillows we purchased based off the good reviews and that it states has cooling effect.
Well a good point it has is the blend of stuffing. Also the ability to remove or add for your comfort. The softness/firmness is just right once you figure out your comfortable mix.
However with having foam and poly blend, there is no cooling. Those tiny blue specs do nothing but add color to stuffing. Both my husband an myself wake up because our head is hot. Moving around alot helps with that but doesn't offer a restful sleep.
I do like that it has a cover over the pillow so you have 2 zippers to go through to remove stuffing. This prevents waking with foam all over your bed.
Overall I would have given a better review if actually offered the cooling effect. I could have saved money an just purchased the cheaper pillow they offer.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Tired of bad sleep try this pillow :)
Size: Sapphire Queen
Never owned a nice or expensive pillow finally after a good 25 years of super cheap pillows finally decided to try a nice one and see if there is a big difference and see what all the woot is about anyways in my opinion I am a side sleeper and I now just use this instead of multiple pillows and I can safely say it works very well seems too cool a little and is very comfortable plus bonus they give you extra fluff if you want to add more or replace but straight out of the box was absolutely perfect for sleeping I am insanely picky about it will ABSOLUTELY BUY THIS AGAIN 🥰🥰🥰 firmness absolutely perfect as is
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Reviewed in the United States on March 29, 2026
★★★★★ 1
Flattened out a little over a month or using it
Size: Sapphire Queen
Figured I would wait a month or 2 before leaving a review. At first. The pillow was great. Very comfortable. Held up nice. Nice and firm and gave great support. After a month. It started to flatten out. Had to re-fluff it only to have flatted out faster this time. Now no matter how many times I fluff it. It doesn’t give the proper support any longer. I’ve bought 2 of these and they are identical. So it can’t be just a fluke for the 2 i have. I’m regretting the purchase as the price was fair when I bought them. But not any longer as they are not the same.
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Reviewed in the United States on January 26, 2026
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