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<p id="isPasted">The SL-1 is designed to work between -10&#xB0;C and 45&#xB0;C (14&#xB0;F to 113&#xB0;F), and to be stored between -20&#xB0;C and 55&#xB0;C (-4&#xB0;F to 131&#xB0;F). Outside those ranges, battery life and reliability can suffer!</p>

The SL-1 is designed to work between -10°C and 45°C (14°F to 113°F), and to be stored between -20°C and 55°C (-4°F to 131°F). Outside those ranges, battery life and reliability can suffer!

What's the SL–1's Operating Temperature Range?

QALO Products

SL-1

Getting Started

QALO Ring User Manuals

Which Finger Should I Wear My Ring On?

How to Choose the Right QALO Ring Size

Why QALO Smart Ring Sizes Are Different From Standard Ring Sizes

How to Confirm Your QALO Smart Ring Size Before Ordering

Setting Up Your Ring

How Long Does It Take to Process My QALO Order?

QALO Shipping Timeframes

Does QALO Ship Internationally?

Ordering Customized & Engraved Rings

Orders & Shipping

What Is QALO Return Protection?

What Items Are Final Sale?

How Do I Return or Exchange My Order?

QALO Smart Ring Warranty

Warranty Coverage for Amazon & Retail Purchases

Warranty Policy— Silicone Rings & Dog Tags

Returns, Exchanges & Warranties

Sleep Tracking — What a QALO Smart Ring Measures While You Rest

Women's Health & Cycle Tracking — Core vs. Complete Explained

HRV — Your Daily Readiness Score Explained

Stress Tracking — How a QALO Smart RIng Reads Your Nervous System

SpO2 (Blood Oxygen) — What It Means and How QALO Tracks It

Activity Tracking — Movement, Workouts & Your Daily Output

App Features

The QALO App

What's Included in the QALO Ring box?

Does the QALO Ring Require a Subscription?

Is the QALO Smart Ring Waterproof?

How Accurate is the QALO Smart Ring?

What Does the QALO Ring Track?

QALO SR-1 or SR-2: Which QALO Smart Ring Is Right for You?

QALO Smart Ring

What material are QALO silicone rings made from?

How can I customize a QALO silicone ring?

What stores carry QALO silicone rings?

How do I clean a QALO silicone ring?

How to find your QALO silicone ring size

How do I wear a QALO silicone ring?

Silicone Rings vs. Metal Rings — What's Different?

Silicone Rings

How do I wear the SL-1 correctly?

Can I wear the SL-1 in the shower?

Can I get a different color or size strap?

After unboxing, what if I can't find SL-1 bluetooth signal?

How do I charge the SL–1?

How long does the SL-1 battery last?

Why does it feel warm after charging?

Why is my battery draining faster than expected?

The SL–1 isn't charging — what should I check?

Charging the SL-1 and Battery Life

How do I manually connect and sync my SL-1?

QALO App and Connectivity

My QALO Ring Won't Pair or Connect to My Phone

How Do I Remove a Stuck Ring?

My QALO Ring Isn't Charging

Troubleshooting & FAQs

What's the SL–1's Operating Temperature Range?Updated 10 days ago