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ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0 vs Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks

Buy the ActionHeat 3V Wool socks if you want heated socks at a low price and don't need app control. Buy the Therm-ic S-Pack 1400 BT if you want Bluetooth control, longer battery life and a more premium build. As of November 4, 2026, the ActionHeat is $89.99 at Amazon and the Therm-ic is $299.95 at Backcountry.com, so the Therm-ic costs about $210 more.

Today the ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0 costs $209.96 less at its best price.

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ActionHeat
ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0

ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0

4.5· 75 ratings
$89.99at AmazonObserved at 11:48 AM
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Choose the ActionHeat 3V Wool if you want warm toes for under $100 and three heat settings are enough.

Pros
  • Lowest price of the two by a wide margin.
  • Wool-blend sock with heat panels over the toes.
  • Three heat settings up to 140F.
  • Machine washable in the included mesh bag.
  • Comes with two batteries, a dual charger and a wash bag.
Cons
  • 8 hours of heat only on the low 100F setting.
  • No app or Bluetooth control.
  • Only three sizes, and XXL is the largest.
  • Batteries sit in a pocket at the top of the sock.
Therm-ic
Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks

Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks

$299.95at Backcountry.comObserved at 11:46 AM
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Choose the Therm-ic S-Pack 1400 BT if you want to set heat from your phone and need up to 16 hours of runtime.

Pros
  • Up to 16 hours of runtime, roughly double the ActionHeat.
  • Bluetooth app with three levels and up to 4 user profiles.
  • Two 2800 mAh batteries included.
  • Wider size range from XS to XL.
  • Pairs with up to 4 Therm-ic heated products in one app.
Cons
  • Costs about $210 more than the ActionHeat.
  • Only 5 hours on the top heat level.
  • App setup adds a step before you get heat.
  • Fabric blend and care instructions are not spelled out in the specs.

What separates them

ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks
Price$89.99 at Amazon as of November 4, 2026$299.95 at Backcountry.com as of November 4, 2026
Battery lifeUp to 8 hours on low, 4+ hours on highUp to 16 hours, 8 hours on level 2, 5 hours on level 3
ControlsButton on the battery, three settingsButton plus Bluetooth app, three levels, up to 4 profiles
Battery capacity3.7V 2.2Ah lithium-polymer per sock2800 mAh per battery, two S-PACK 1400B included
Max temperature140F on highNot stated in the specs given
Fabric50% wool, 48.5% cotton, 1.5% LycraUltra Warm Performance sock, blend not stated
SizesS/M, L/XL, XXLXS-XL unisex
CareMachine washable in the included mesh bag, gentle cycleNot stated in the specs given

Price history

  • ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0: lowest $89.99 on Nov 4 at Amazon.
  • Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks: lowest $299.95 on Nov 4 at Backcountry.com.

Prices at every store

ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0

  • Kohl'sNew

    In stock

    $99.99Free shippingObserved at 11:48 AM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $89.99Free shippingObserved at 11:48 AM
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Also available at

  • ActionHeat Heated ApparelCheck price at ActionHeat Heated Apparel
  • MyCoolingStoreCheck price at MyCoolingStore
  • Wholesale ActionHeatCheck price at Wholesale ActionHeat
All 2 stores and price history →

Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks

  • Backcountry.comNew

    In stock

    $299.95Free shippingObserved at 11:46 AM
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  • Larry's Boot FittingNew

    In stock

    $299.95Observed at 11:46 AM
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  • eBayNew

    In stockSold by backcountry

    $299.95Free shippingObserved at 11:46 AM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $299.95Free shippingObserved at 11:46 AM
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Also available at

  • eBayCheck price at eBay
All 4 stores and price history →

Specs compared

SpecActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks
Battery voltage3.7 Volt—
Maximum temperature140F—
Heat durationup to 8 hours—
High setting heat time140F – 4+ Hours—
Medium setting heat time120F - 6+ Hours—
Low setting heat time100F – 8+ Hours—
Material content50% Wool, 48.5% Cotton & 1.5% Lycra—
Battery capacity3.7 Volt 2.2AH Lithium-Polymer—
Available sizesS/M, L/XL, XXL—
ColorBlack—
CareMachine Washable using provided mesh wash bag o…—
FitUnisex Fit—
Show all 26 specsShow fewer specs
SpecActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks
Sizes—XS-XL (unisex)
Output—2800 mAh; two S-PACK 1400B batteries
Battery life—up to 16 hours
Bluetooth—Bluetooth
App profiles—up to 4 user profiles
App products—up to 4 Thermic heating products
Charger included—USB charger
Length—21.30 cm
Width—13.30 cm
Height

What reviewers say

ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0

Rated 4.5 out of 5 from 75 ratings, with buyers describing warm toes on cold days and simple three-button control. Complaints center on battery life on the high setting and the feel of the battery pocket against the leg.

Pros
  • Toes stay warm in freezing conditions
  • Easy to turn on and switch settings
  • Wool blend is comfortable against the skin
  • Batteries and charger included
Cons
  • High heat drains the battery in about 4 hours
  • Battery pocket can feel bulky under tight boots
  • Sizing runs limited for very small or very large feet

Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks

Owners of Therm-ic heated sock systems generally report warm feet through a full ski day on the middle setting and like the app control. Common complaints are the price, battery bulk at the cuff and shorter runtime on the top level.

Pros
  • Reliable warmth on cold days
  • Useful app with per-foot control
  • Batteries last a full ski day on level 2
  • Socks are comfortable enough to wear all day
Cons
  • Expensive compared with heated insoles
  • Batteries feel bulky at the ankle
  • High setting drains batteries quickly
  • App pairing can be fiddly

Questions and answers

Which is better for a full day of skiing?
The Therm-ic. It runs up to 16 hours and up to 8 hours on level 2, while the ActionHeat tops out at 8 hours and only on its 100F low setting.
Is the Therm-ic worth the extra $210?
Only if you want app control and long runtime. The ActionHeat heats to 140F and costs $89.99 at Amazon as of November 4, 2026, versus $299.95 at Backcountry.com for the Therm-ic.
Which gets hotter?
The ActionHeat states 140F on high. Therm-ic lists three intensity levels but no temperature figure in the specs given.
Which is easier to wash?
The ActionHeat. It is machine washable on a gentle cycle in the included mesh bag. Therm-ic care instructions are not stated in the specs given.
Do both include batteries and a charger?
Yes. ActionHeat includes two 3.7V 2.2Ah batteries and a dual charger. Therm-ic includes two S-PACK 1400B batteries and a USB charger.
Which fits more people?
The Therm-ic, with sizes XS through XL. The ActionHeat comes in S/M, L/XL and XXL.

More comparisons

  • Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks vs Gerbing 7V Battery Heated Sock Liner
  • Therm-ic S-Pack 1400 BT with Ultra Warm Performance Socks vs Savior Heat Heated Socks
  • ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0 vs Gerbing 7V Battery Heated Sock Liner
  • ActionHeat 3V Wool Rechargeable Battery Heated Socks 1.0 vs Savior Heat Heated Socks

Buying guides that pick them

  • Best heated socks
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6.30 cm
Weight—484 g
Heat levels—three heat intensity levels
Heating time level 2—up to 8 hours
Heating time level 3—up to 5 hours