Restore heart rate, wrist detection and workouts on Apple Watch, Samsung, Garmin and more — without disabling the sensor. 3N20 optical technology, patent pending.
Thousands of users face the same challenge every day: Smartwatches don't work on tattooed arms. Ink pigmentation blocks the sensor's optical reading.
The watch asks for your password or PIN every few minutes because it thinks it's off your wrist.
Health tracking and GPS pause on their own because they lose the blood flow reference.
Disables contactless payments (Apple Pay/Google Pay) and exposes your data.
Many users try home remedies that end up damaging the device or ruining the experience:
Precision optical interface.
Original technology at INPI.
Extreme adhesion without residue.
Hypoallergenic and comfortable.
No interference with charging.
Resistant to swimming and workouts.
5.0 · real reviews (Google, Mercado Libre, Shopee and Amazon)
Excellent product! Impeccable quality, easy to apply and amazing results.
Caroline Moreira Google
Top product, it solved my problem!
MANOEL Ricardo Google
I found you on TikTok, bought it, and it's working perfectly. Thank you!
Customer Mercado Libre
And would you look at that — the sticker worked? Heart rate is measuring again on my tattooed arm.
Customer Amazon
Verified Shopee purchase — 5-star review.
Customer Shopee · 5★
Reached out through the website, paid with PayPal and the lens was shipped to Portugal — order completed.
Pedro Almeida Matosinhos, Portugal
Because tattoo ink blocks the sensor's light, the watch cannot calculate your heart rate. The system interprets this signal loss as if you had stopped exercising or removed the device, pausing the activity automatically to save battery.
Every smartwatch has a security lock that requires continuous blood flow reading to know it is on your wrist. When ink pigmentation prevents this reading, the watch activates PIN lock and disables smart features because it thinks it was removed from your body.
When the sensor cannot detect your pulse because of tattoo ink, the watch assumes it was removed and asks for the passcode again as a security measure. The Sensor TattooFix lens fixes this by restoring proper blood flow detection, preventing constant lockouts.
Your smartwatch sensor uses light to measure blood flow. Tattoo ink acts as an opaque barrier that absorbs or scatters that light, preventing the sensor from receiving the return signal. The watch then wrongly assumes it was removed from your wrist, causing automatic workout pauses or reading failures.
Our lens technology was developed specifically to bypass the blocking caused by tattoo ink. It acts as a high-precision transmitter that allows the biometric sensor to read through tattooed skin, keeping all watch functions (payments, health and workouts) 100% operational.
No. Disabling pulse detection is the worst solution. It turns off essential features such as contactless payments (NFC), automatic security lock and continuous health monitoring. You effectively turn a cutting-edge smartwatch into a regular watch that only tells time.
Installation is simple and quick. First, clean your watch sensor with the supplied isopropyl alcohol wipe. Peel the protective film from the medical-grade VHB adhesive, align the lens with the center of the sensor and press gently for 30 seconds to ensure full adhesion.
No. The Sensor TattooFix lens is ready to use. After sticking and pressing for 30 seconds, it is immediately ready. There is no film or layer on top of the lens to remove; it already has the ideal transparency and finish for sensor operation.
No. We use high-performance VHB adhesive that is extremely resistant to moisture, sweat and submersion. You can swim, shower and train intensely without fear of it peeling off.
After installation, we recommend waiting 72 hours before exposing the watch to water, swimming or intense sweating. This is the ideal cure time for the VHB adhesive to reach maximum strength, ensuring a perfect and lasting seal.
Yes. If you need to remove the lens later, carefully lift it with a thin plastic spatula or your fingernail. Any adhesive residue can be easily cleaned with a little isopropyl alcohol, leaving the watch's original sensor intact.
The same Sensor TattooFix kit on multiple channels.
Questions about compatibility or wholesale orders?
