Premium Charging Case
Suna Ring product photo
Charging essentials included 30-day returns

Premium Charging Case

Premium Charging Case

Your body. Your rhythm. Your metrics.

$0.00
Premium Charging Case
Suna Ring
Suna Ring
Suna Ring
Suna Ring
Suna Ring
Suna Ring

GOOD TO KNOW

Your Suna questions, answered.

Sizing guide

Measure the inside diameter of a ring that fits your chosen finger, then match it to your US size below. Select your size before adding to bag.

Find your US ring size
Inside diameterUS size
15.7 mm5
16.5 mm6
17.3 mm7
18.1 mm8
18.9 mm9
19.8 mm10
20.6 mm11
21.4 mm12
22.2 mm13

Measure the inside opening, without including the ring’s edges. Measurements are approximate; a physical ring sizer is the best way to confirm your fit.

What is included with my Suna Ring?

Your Suna Ring includes a premium charging case, USB-C cable, free app access, and sizing support. The current bundle also includes three silicone covers in Black, Blush, and Clear to match your selected ring size.

What comes with SunaCare+ Lifetime Warranty?

SunaCare+ is an optional $19 add-on that you can select in your shopping bag after adding your ring. It is separate from the ring purchase. For coverage eligibility and help with a claim, contact our team with your order details.

Is there a monthly subscription?

No. Your Suna Ring includes free app access for iOS and Android, with no monthly subscription fee.

Shipping & returns

Shipping: 1–3 business days.

You can request a return within 30 days of delivery. Keep your Suna Ring in good condition and include the accessories and promotional gifts. Return shipping costs may apply. See Suna’s return policy for eligibility and terms, and contact Suna support before sending anything back.

THE SUNA APP

Your day, brought together.

Explore sleep, movement and daily patterns in one place.

SUNA

Your day, at a glance

Total time asleep 7 hr
Bedtime and wake-up time
11:00–07:30
Active time 30 min
Movement this week: 4 days

Your daily reminders

08:00A morning walk

09:20Read every day

12:05Take medicine · personal reminder

18:3040-minute meditation

Reminders set by you, not medical instructions.

Today

SUNA
Today

Wellness Balance

Energized

89 out of 100
Sleep88
Relaxation92
Vital Signs93
Activity83

FOUR SIGNALS. ONE CLEARER PICTURE.

Your signals are in sync. Make today your own, with a little more understanding of you.

Sleep
88Optimal
0:419:03
Total time asleep: 8 hr 54 min
Activity
83Balanced
9,032steps
503kcal
64min
Stress index
24Relaxed
LowHigh
00:0012:0024:00
Vital Signs
93
Heart rate68 bpm
Heart rate variability48 ms
Blood oxygen98%
Temperature variation+0.2°C

Overview

SUNA

Lifestyle score

Your weekly view

86Excellent

Compared with four weeks ago

Up 14 ↑

Small routines add up. Explore how your sleep and movement patterns change over time.

Sleep
4 weeks agoToday
Sleep recovery
91Optimal

A closer look at your overnight recovery progress.

Sleep rhythm
Normal
MonSun

Your bedtime and wake-up times across the week.

Sedentary risk
Low

Movement breaks throughout your day.

Exercise habits
Exercise regularly

Movement this week: 4 days

Stress
Balanced

See how moments of rest fit into your weekly routine.

Patterns

SUNA

Discover

Period forecasts

Estimated cycle — Day 17

15 days until your next predicted period

Log symptoms

Cycle estimates are not for contraception.

Movement

Every day, at your pace.

45min
230kcal
146bpm
Activity summary
Sleep apnea insights

Overnight breathing

23:0003:0007:00

Not a sleep apnea test or diagnosis.

Blood pressure trends

Blood-pressure log

SystolicDiastolic
4 weeks agoToday

Manually logged readings; blood pressure is not measured by the ring.

Discover

Find your Suna

Swipe between phones · Scroll inside each screen

ONE RING. YOUR EVERYDAY LIFE.

Made for the way you live.

Woman wearing a silver Suna Ring in warm morning light
Comfort for your everyday. A sleek profile that feels at home in your morning routine and your evening wind-down.
Gold Suna Ring on a hand resting on soft linen
Get to know your nights. Follow your sleep patterns and see how your rest changes over time.
Woman wearing a gold ring and viewing an illustrative SUNA app screen
Your day, in one place. Bring sleep, activity and everyday patterns together with free app access.
SUNA

YOUR DAILY RHYTHM

7h 42mTime asleep

Your week at a glance
Your daily patterns, brought together. Explore sleep, activity and heart-rate trends in one place, with free app access included.
Silver smart ring over soft lavender water ripples
Refined in every detail. A sleek silver finish with a smooth profile, designed to move with your everyday style.
Silver Suna Ring worn while holding a tennis ball and racket
Your movement, in view. Track steps, activity and estimated calories, from a morning walk to your next workout.
Gold Suna Ring worn while carrying white trainers
5–7 days between charges. Spend more time wearing Suna through your routine. Battery life varies with use.
Gold
Gold01 / 13
Thirteen finishes. Your signature. Six classic essentials. Seven seasonal expressions. Swipe to find your finish.

What Suna Tracks

  • Sleep quality
  • Heart rate
  • Steps and activity
  • Calories burned
  • Blood oxygen
  • Temperature trends
  • Recovery insights

Battery life varies with use. Tracking provides wellness insights, not a medical diagnosis.

What's Included

Suna Ring · Charging case · USB-C cable

One ring in your selected finish. Silver shown.

Suna bundle with one silver ring, an open cream charging case, and a white USB-C cable

Technical
Specifications

Smart ring on a charging dock with USB-C cable
Sensors

Red, infrared and green LEDs, temperature sensors, and an accelerometer.

Size & weight

6.09 mm wide and 2.28 mm thick. Weight starts at 2 grams.

Battery

5–7 days between charges. A full charge takes up to 80 minutes.

Materials

High-performance titanium inside and out.

Water resistance

Rated up to 100 m / 328 ft and IP68. Follow the care instructions supplied with your ring.

Connectivity

Bluetooth Low Energy, firmware updates, and airplane mode.

Battery life varies with use. Wellness insights are not a medical diagnosis.

Try it for 30 nights. Risk free.

Wear it. Sleep in it. Swim with it. If Suna doesn't change how you understand your body, send it back.

  • $0 Subscriptions.
  • 30-night risk-free trial
  • Real human support, seven days a week