MAXwarm 4.0 Knee Massager
IKEEPFIT: Walk, Work, Live Pain-Free
The cordless knee massager you can actually wear while moving. 360° heated compression therapy with 5 heat levels and 3 massage modes. Japanese 5000mAh battery lasts 10+ sessions per charge.
2-Year Warranty • 2,000+ Charge Cycles • 2-Pack
Why Athletes and Seniors Choose This Heated Leg Massager
360° Heat Coverage
16,800mm² heating area wraps your entire knee—double the coverage of competitors. Five precise temperature settings from 113°F to 149°F for targeted muscle fatigue relief.
True Wireless Freedom
Japanese 5000mAh battery powers 10+ sessions per charge. Wear it during walks, at your desk, or on flights. No cords, no bulk—just portable heated compression therapy.
Fits Every Body
Soft ergonomic design with adjustable velcro plus extension straps. Stays put while running. Convert to shoulder wrap with included 28-inch strap for circulation improvement.
IKEEPFIT Heated Knee Massagers
Experience 360° heated compression therapy with our cordless knee massagers. Japanese battery tech delivers 10+ uses per charge for muscle recovery anywhere.
MAXwarm 4.0 Knee Pair
Check PriceIKEEPFIT 2025 upgraded heated knee massager with 16,800mm² coverage and 5000mAh Japanese battery.
- 5 heat levels from 113°F to 149°F
- 3 vibration modes for relief
- 10+ uses per single charge
- Wearable while walking or working
MAXwarm Knee Single
Check PriceIKEEPFIT Cordless heated knee brace with air compression massage for targeted pain relief.
- Full 360° knee coverage
- Adjustable velcro fit all sizes
- FSA/HSA eligible purchase
- Soft materials for comfort
MAXwarm Leg Massager
Check PriceIKEEPFIT Heated calf compression massager for circulation improvement and muscle fatigue relief.
- Air compression technology
- Portable wireless design
- Great for muscle recovery
- 2-year battery guarantee
Wireless therapy that moves with your life.
IKEEPFIT designs cordless massagers that free you from wires. We believe pain relief shouldn't keep you stuck in one place.
Our MAXwarm 4.0 features premium Japanese batteries rated for 2,000+ charge cycles. Every component is tested for consistent, safe heat therapy.
Each purchase includes a 2-year warranty and FSA/HSA eligibility. Real support from people who actually use these products daily.
What Our Customers Say
"I wear these during my morning walks. The heat penetrates deep and my knees feel 10 years younger. Battery lasts all week."
"Post-surgery recovery was rough until I got these. The 360° coverage and adjustable heat made physical therapy so much easier."
"As a long-haul trucker, my knees took a beating. Now I use these on breaks. Portable, cordless, and actually works."
Why Choose IKEEPFIT?
See how the MAXwarm 4.0 outperforms typical knee massagers
| Feature | IKEEPFIT | Typical Product |
|---|---|---|
| Heating Area | ✓ 16,800 mm² (360°) | 8,000 mm² partial |
| Battery Capacity | ✓ 5000mAh Japanese | 2000-3000mAh |
| Uses Per Charge | ✓ 10+ sessions | 3-5 sessions |
| Heat Levels | ✓ 5 (113-149°F) | 2-3 levels |
| Materials | ✓ Soft, skin-friendly | Hard plastic |
| Warranty | ✓ 2 years | 90 days - 1 year |
Common Questions
How large is the heating area on the IKEEPFIT cordless knee massager?
The MAXwarm 4.0 features a 16,800 mm² heating surface—double the coverage of most competitors. This provides full 360-degree knee coverage for comprehensive heated leg compression therapy.
How long does the battery last between charges?
The 5000mAh Japanese battery powers at least 10 full sessions per charge. With over 2,000 charge cycles tested, this portable calf massage device maintains performance for years.
What temperature range does the heat therapy offer?
You get 5 precise heat levels ranging from 113°F to 149°F. The NTC smart temperature control ensures consistent, even heating for safe muscle fatigue relief.
Will this fit larger legs or knees?
Yes. Adjustable velcro straps fit most sizes, plus we include two 8-inch extension straps and a 28-inch strap for shoulder use. The ergonomic design stays secure even while walking.
Is the IKEEPFIT knee massager FSA/HSA eligible?
Yes, this heated calf compression massager is FSA/HSA eligible. You can use pre-tax health savings to purchase this circulation improvement massager.
Can I use heat and vibration separately?
Absolutely. The 3 vibration massage modes (gentle, soothing, intense) can be switched off independently, so you can enjoy heat-only therapy for leg muscle relaxation.
What materials is the massager made from?
Unlike hard plastic competitors, IKEEPFIT uses only soft, skin-friendly materials. It folds like clothing for easy packing—a truly wireless cordless massager built for comfort.
What warranty comes with the MAXwarm 4.0?
You get a full 2-year guarantee covering the battery and device. Our premium Japanese batteries are tested for 2,000+ charge cycles, setting an industry benchmark for air compression massage technology.