Titan I in Graphite — angled view showing inner sensor array
4.7 · 5,821 reviews

Titan I

The original smart ring — now more affordable than ever

$229one-time · no subscription required

Titan I delivers the essentials of everyday health tracking in a rugged, durable design built to last. A scratch-resistant stainless steel body and 5 ATM water resistance stand up to daily wear, workouts and the elements — while tracking your sleep, heart rate, blood oxygen, activity and recovery through the Titan app.

Already considering Titan I?

Titan II adds a lighter titanium design, advanced health sensing, stress monitoring, precision temperature tracking, and up to 7 days of battery life.

Compare Titan I and Titan II
  • Heart rate, blood oxygen and HRV tracking
  • Sleep tracking with daily insights
  • Automatic activity and step tracking
  • Up to 5 days of battery life
  • 5 ATM water resistance
  • Syncs with the Titan app on iPhone and Android
Finish: Graphite
Size
Adjustable ring sizer band with numbered size markings
Not sure of your size? Get the sizing kit — $20Try every size at home and get $20 back as credit toward your next purchase.

Low stock · 8 left

Free shipping
2-year warranty
30-day returns
What it does

Built to measure what matters

Sleep tracking

Automatic sleep staging every night — light, deep and REM — so you wake up knowing how you really rested.

Resting heart rate

Continuous heart-rate monitoring straight from your finger for a cleaner signal than a wrist wearable.

Daily activity

Steps, active calories and movement reminders keep your day on track without a screen on your wrist.

Water resistant

Rated to 50 m (5 ATM) so you can shower and swim without a second thought.

5-day battery

A quick top-up on the included dock keeps Titan I going for up to five days between charges.

Sizes 7–13

Add the $20 sizing kit to nail your fit — you get $20 back as credit toward your ring.

Technical specs

Material
Stainless steel body
Weight
3.5 g
Sensors
Optical heart rate · SpO₂ · HRV · motion sensor
Water resistance
50 m / 5 ATM
Battery
Up to 5 days · full charge in ~1 hour
Charging
Magnetic charging dock
Sizes
US 7–13
Connectivity
Bluetooth Low Energy · iPhone & Android
Finishes
Graphite · Steel · Royal
Complete your setup

Pairs well with

Every Titan device shares one app, so your ring, scale and tape build a single, complete picture of your health.