- New







Your feedback matters. This will take less than one minute.
Excellent on Trustpilot★
The iStim S1 HEAT TENS Unit brings revolutionary relief from menstrual pain, seamlessly blending TENS therapy with soothing heating pads. With 15 customizable levels of intensity, it targets discomfort effectively, letting you find the perfect setting for your needs.
Its wireless design ensures freedom of movement, delivering 100Hz pulse frequency impulses directly to your pain points. Whether at home or on the go, this self-adhesive combo provides instant relief without cumbersome wires.
Designed for comfort, the sleek, portable iStim S1 fits discreetly under clothing, allowing you to carry on with your day. Built with rechargeable features and high-quality silicone wings, it offers premium pain management.
Plus, the Japanese electrode gel pads ensure maximum conductivity, making treatments more efficient—all while being suitable for sensitive skin. Get ready to embrace comfort with every use!
✨Free delivery✨
Experience relief from menstrual cramps and back pain with the iStim S1 Wireless TENS Unit. This drug-free physical therapy device features multiple settings to customize your relief. Rechargeable and portable, it includes Japanese gel pads for maximum comfort and efficiency.

The iStim S1 is designed to provide rapid pain relief for menstrual cramps, utilizing advanced TENS technology and adjustable settings to enhance your comfort during those challenging days.

This device features user-friendly controls and a sleek design, making it easy to use while at home or on the go. The included gel pads ensure effective and comforting sessions without the need for medication.

The iStim S1 comes equipped with various settings to cater to your personal comfort levels, allowing for a truly customizable experience in pain management.

Enjoy a comfortable experience with the iStim S1, which is not only beneficial for menstrual relief but also golf for overall muscle pain relief, making it a versatile addition to your health toolkit.

This product makes for an excellent gift, especially for women who experience discomfort regularly. With its stylish packaging and effective design, it's sure to be appreciated.
A Game Changer for Pain Relief!
Finding effective pain relief has been a challenge until I discovered the iStim S1 Wireless TENS Unit. The combination of TENS therapy with heating pads is genius, and the customizable intensity levels really cater to my needs. It's incredibly convenient to use on-the-go without those pesky wires!
Freedom from Pain in a Compact, Wireless Design
Discovering the iStim S1 has been a game-changer for my menstrual pain. The combination of TENS therapy and gentle heat provides targeted relief, and its wireless design means I can carry on with my daily activities effortlessly. It's compact, effective, and truly comfortable to wear under clothing, making it an invaluable addition to my pain management routine.
A Game-Changer for Back Pain Relief!
The iStim S1 unit is an absolute must-have for anyone dealing with stubborn pain. I was skeptical at first, but the combination of TENS therapy and heat works wonders independently of bulky wires. Its sleek design means I can wear it anywhere and the rechargeable feature is a godsend. Plus, the gel pads are gentle on my sensitive skin. Instant comfort and relief, every time!