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Go to the shopUltimate Backup Key
No key card? No phone battery? No problem.
Smart Ring is your ultimate Plan B. It replaces the bulky key fob and card, ensuring you always have access to your Model 3/Y. It’s the key you wear, so you can never lose it.
Zero charging required. Always on.

Official Tesla Tech
Unlike cheap clones, our ring is equipped with the Official Tesla Original NFC Chip. This ensures instantaneous recognition with no lag.
Simply tap to unlock, and place your hand on the console to drive. It’s a seamless interaction that feels like magic.

We combined luxury with utility. Crafted from Polished Zirconia Ceramic and Epoxy Resin. Skin-friendly. Scratch-resistant. Hypoallergenic.
Skin-friendlyHypoallergenic
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IP68 WaterproofSwim, Surf, Shower
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0.11″ Thin7mm Standard Width
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Adventure Ready
Going for a run, surfing, or swimming? Leave the bulky phone and wallet in the glovebox. The Tesery Ring is IP68 Waterproof and dustproof.
It also comes in exquisite packaging, making it the perfect gift for the Tesla owner in your life.
Use standard US Ring Sizing. Follow these steps for accuracy.
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1
Measure an Existing RingTake a ring that fits the intended finger perfectly. Measure the inside diameter (not outside) in millimeters. Match it to the chart below. |
2
Use String or PaperWrap a piece of non-stretchy string or paper around the base of your finger. Mark the overlap point, then measure the length (Circumference) in mm. |
3
Visit a JewelerFor the most accurate fit, visit a local jeweler. Ask them to measure your finger for a Standard US Fit (not comfort fit) ring. |
| US Size | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|
| Size 6 | 16.5 mm | 53 mm |
| Size 7 | 17.3 mm | 56 mm |
| Size 8 | 18.2 mm | 59 mm |
| Size 9 | 18.9 mm | 62 mm |
| Size 10 | 19.8 mm | 65 mm |
| Size 11 | 20.7 mm | 68 mm |
| Size 12 | 21.3 mm | 71 mm |
Pro Tip: Fingers swell slightly throughout the day or in warm weather. Measure your finger at the end of the day. If you are between two sizes, we recommend sizing up for a more comfortable fit.
| Material | Polished Zirconia Ceramic + Epoxy Resin |
| Chip Type | Official Tesla Original NFC Chip |
| Ring Width | 7mm (Standard) |
| Waterproof Rating | IP68 (Safe for swimming/showering) |
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