Walking my dogs in freezing mornings used to wreck my hands, but MagnaWarm changed that. I keep one half in my pocket and hand the other to my husband, and we're both warm the whole walk.
Michelle R.Verified Buyer
MagnaWarm ™
Regular price
$119.99
Regular price
$119.99
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Thermal Merino Wool Boot Socks
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How It Works
How It Works
- Charge MagnaWarm fully with the included USB-C cable before your first use.
- Press the button once and feel warmth activate within seconds.
- Detach the two halves to share warmth, or keep them joined for full-hand power.
- Plug into the built-in USB output to charge your phone on the go.
- Built-in sensors hold the temperature steady so warmth stays consistent, not spiking.
What's Included
What's Included
- MagnaWarm Rechargeable Hand Warmer
- USB-C Charging Cable
- Premium Packaging Box
- User Manual
Shipping & Returns
Shipping & Returns
We offer free shipping for all orders. Once your item/s is dispatched,
the estimated delivery time is:
- USA: 2-9 business days
- UK: 5-13 business days
- Australia: 5-13 business days
- Canada: 2-12 business days
- Europe: 5-13 business days
You have 90 days to return your product for a full refund (return shipping is covered by the customer; defective items ship a free replacement).
Official Authorized Retailer
This product is not available on Amazon or eBay. You are purchasing directly from the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.
MagnaWarm
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Built for Warmth That Actually Lasts
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Magnetic Split & Share Design
Detach the two halves to share warmth with someone else, or keep them joined for full-hand power. Strong magnets snap them back together instantly.
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Doubles as a Power Bank
This warmer doubles as a power bank with USB output, so your phone charges while your hands stay warm through long days outside.
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Heat Activates in 3 Seconds
The heating surface warms up in three seconds flat, so relief starts the moment you press the button.
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Overheat Protection Built In
Built-in NTC sensors track surface temperature and cut power before it climbs too high. You get steady warmth, never a dangerous spike.
What our 17,000+ Customers say
Based On Real and Honest Experiences
I used to grab the drugstore heat packs, but the warmth never reached past my palm. MagnaWarm actually wraps around my whole hand, and it charges my phone too when I'm out on long shifts.
Mia D.Verified Buyer
MagnaWarm runs warmer than any single-use packet I've tried, and the magnets snap together so solid I never worry about losing a half in my coat. It gets warm fast but never scorching, so I keep it in my glove all day without a second thought.
Alex M.Verified Buyer
Frequently Asked Questions
verified
+347 experts reviewed it
as the best choice in 2026
+347 experts reviewed it
as the best choice in 2026
Q1 How long does it last on high vs low?
On the highest setting, expect around 6 hours of strong heat. Drop to the lowest setting and a single charge can stretch to 12 hours of steady warmth.
Q2 Is it safe to use if I have Raynaud's or numb fingers?
Start on the lowest setting against skin or gloves and adjust from there. Many customers with cold-sensitive hands use it daily, but always check with your doctor about any nerve or circulation condition first.
Q3 Why do rechargeable hand warmers sometimes stop charging after a season?
Lithium batteries slowly lose their ability to hold a charge if they sit completely empty for months at a time. Give MagnaWarm a quick top-up charge occasionally during the off-season and this won't be an issue.
Q4 Can I bring a rechargeable hand warmer on a plane?
Yes, small rechargeable hand warmers like MagnaWarm are generally allowed in carry-on bags since they use a small lithium battery. Keep it in your carry-on rather than checked luggage, and check your airline's exact battery rules before you fly.
Q5 How do the magnetic pieces attach?
Strong neodymium magnets snap the two halves together securely, yet let you separate them in seconds whenever you want to share the warmth.
Q6 Will MagnaWarm overheat or catch fire?
MagnaWarm uses built-in NTC sensors that track heat continuously and cut power back before it climbs too high, so the surface stays in a safe, comfortable range instead of spiking.
Q7 How often should I charge it when I'm not using it during the off-season?
Plug it in for a full charge roughly every one to two months while it's in storage. This simple habit keeps the battery from fully draining, which is the main reason rechargeable warmers stop holding a charge.
Q8 Does it work well inside gloves or mittens?
Yes. Each detached half is compact enough to slide into most gloves or mittens, so you keep a warm grip while your hands stay free to move.
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4.8/5 by 17,000+ customers
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Reviewed Top 1 in 2026