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REXQU HEALTH WATCHES Get EnduroMax
REXQU EnduroMax Rugged Health Watch
REXQU EnduroMax Rugged Health Watch
$149.97
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Rugged Outdoor Smartwatch

EnduroMax Durable Smartwatch With Zinc-Alloy Case

Built to Take It. Every Day.

EnduroMax is a durable smartwatch for people who are hard on watches. A zinc-alloy outdoor smartwatch with a 1.43-inch AMOLED display, continuous heart-rate trends, on-demand SpO₂ estimates, sleep tracking, Bluetooth calling, 100+ sports modes and up to 15-day listed battery life.

$149.97

✓ Free shipping   ✓ 30-day money-back guarantee   ✓ Works with compatible iPhone & Android phones

REXQU EnduroMax durable smartwatch with zinc-alloy case, AMOLED display and Bluetooth calling
Free shipping 30-day returns Ships in 24–48 hours No subscription required

What Makes This a Durable Smartwatch, Not Just a Tough-Looking One

EnduroMax combines a reinforced metal case, bright AMOLED display and outdoor-ready controls with fitness and general wellness features.

✨

1.43″ AMOLED on a Durable Smart Watch Case

466×466 pixels at 650 nits with always-on support — bright enough for noon sun, sharp enough for small print.

🛡️

Tough Smart Watch Build in Zinc Alloy

A zinc-alloy case with reinforced side armor and IP68 & 1ATM water resistance shrugs off rain, sweat and rough handling.

❤️

24-Hour Heart-Rate Trends

The optical sensor tracks heart-rate patterns across supported daily activity, sleep and workouts.

🫁

On-Demand SpO₂ Estimates

Review estimated blood-oxygen trends for general wellness and fitness awareness.

😴

Sleep & Daily Activity

Automatic sleep monitoring plus steps, calories and sedentary reminders keep the full picture in view.

🏃

Calls, Sports & Stamina

Bluetooth 5.2 calling with speaker and mic, 100+ sport modes and a 410mAh battery that runs up to 15 days.

REXQU EnduroMax rugged zinc alloy watch on a mountain trail

Zinc-Alloy Outdoor Smartwatch Construction

EnduroMax combines a zinc-alloy case, reinforced side protection and dedicated POWER and SPORT buttons with listed IP68 and 1ATM water resistance. Compare it with other REXQU rugged and outdoor smartwatches.

  • Zinc-alloy case with armored sides
  • IP68 & 1ATM water resistance
  • Dedicated POWER and SPORT buttons
Gear Up →
24H Heart Rate

Continuous Heart-Rate Trend Tracking

The optical sensor tracks heart-rate trends across supported daily activity, sleep and workouts, with history shown in the Da Fit companion app. Explore more REXQU health smartwatches.

  • Continuous 24-hour heart-rate tracking
  • Workout heart rate across 100+ sport modes
  • Trends and history in the DAFit app
Track My Heart →

For wellness tracking and awareness — not a replacement for professional medical advice.

Trail runner checking heart rate on the REXQU EnduroMax
REXQU EnduroMax water resistant watch under splashing water
Blood Oxygen

Review On-Demand SpO₂ Estimates

Take an estimated SpO₂ reading on demand and compare supported blood-oxygen trends in the companion app.

  • On-demand SpO₂ blood-oxygen estimates
  • Readings logged and charted over time
  • Wellness insight for training and recovery
Check My O₂ →

Designed for awareness and conversation with your physician — not for diagnosis.

Bluetooth Calling from a Paired Phone

When a compatible phone is connected and within Bluetooth range, the built-in speaker and microphone let you answer and control calls from your wrist.

  • Answer and dial calls from the wrist
  • Built-in speaker and microphone
  • Notifications and voice assistant
Take the Call →
Woman taking a Bluetooth call on the REXQU EnduroMax
Man sleeping while the REXQU EnduroMax tracks his sleep
Sleep & Recovery

Sleep Tracking and Daily Activity Trends

Wear EnduroMax overnight to estimate sleep patterns, then review supported activity measures such as steps, calories and distance in the companion app.

  • Automatic overnight sleep monitoring
  • Steps, calories and distance daily
  • Optional sedentary reminders
Sleep On It →
REXQU EnduroMax 1.43 inch AMOLED display and rugged case

1.43-Inch AMOLED and Up to 15-Day Battery

The 1.43-inch AMOLED has a listed 466×466 resolution and up to 650-nit brightness. The 410mAh battery is rated for up to 15 days of typical use and charges in about 2.5 hours.

  • 1.43″ AMOLED, 466×466 at 650 nits
  • Up to 15 days of normal use
  • Full charge in about 2.5 hours
See It Shine →

EnduroMax Outdoor Smartwatch Comparison

REXQU EnduroMaxBig-Brand SmartwatchBasic Fitness Band
1.43″ AMOLED at 650 nits✓ 466×466 pixels✓✗ Small LCD
Rugged zinc-alloy case✓ Armored sidesExtra-cost models✗
IP68 & 1ATM water resistance✓ Included✓Splash only
24-hour heart rate✓ Included✓✓ Basic
Blood oxygen (SpO₂)✓ On demand✓Some models
Sleep monitoring✓ Automatic✓✓ Basic
Bluetooth calls (speaker + mic)✓ Included✓✗
Sport modes100+✓~20
Battery per chargeUp to 15 days1–2 days5–7 days
Price$149.97VariesVaries

Beaten Up Daily. Still Ticking.

★★★★★

Verified REXQU EnduroMax customer
★★★★★

“I work construction and this is the first watch that hasn’t cracked, scratched or quit on me. Charged it twice this month.”

Verified Customer  ✓ Customer review
Verified REXQU EnduroMax customer
★★★★★

“The battery claim is real — twelve days with calls and sleep tracking on. And I can actually read it in direct sun.”

Verified Customer  ✓ Customer review
Verified REXQU EnduroMax customer
★★★★★

“Answering calls from the wrist while both hands are on the ladder is the feature I didn’t know I needed.”

Verified Customer  ✓ Customer review

Every order is covered by our 30-day money-back guarantee — with free tracked shipping and easy returns. Love it, or send it back. No questions, no fuss.

Two Finishes. One Tough Core.

All Black, or Black with the signature Orange armor — the same sensors, battery and rugged build under both.

REXQU EnduroMax customizable watch face designs
Watch Faces

A New Face for Every Mood

Swap between analog-digital hybrids, bold data screens and clean classic dials right on the watch — plus a full library in the DAFit app.

  • Analog-digital hybrid and sport dials
  • Big-digit faces you can read at a glance
  • Full face library in the DAFit app
Get My EnduroMax →
Happy REXQU EnduroMax owner at a forest trailhead

REXQU EnduroMax Rugged Health Watch

$149.97

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Four Weeks to Be Sure

Wear the EnduroMax hard for a full month — job site, trail, gym, sleep. If it hasn’t earned the wrist space, send it back for a complete refund. No restocking fee, no interrogation.

How to Judge a Durable Smartwatch Before You Buy

Rugged and durable are marketing words until someone tells you what was tested. Here is what the ratings actually mean, and where the standards come from.

Water resistance ratings are not a swimming licence

IP and ATM ratings describe a specific laboratory test at a specific pressure, in still fresh water, on a new seal. They do not describe diving, hot showers, salt water, or a five-year-old gasket. The IEC explanation of IP ratings is the actual standard behind the numbers. Treat any watch as splash-safe first and prove the rest slowly. Our rugged smartwatch buying guide walks through what each rating permits.

Case material changes what survives a knock

A zinc-alloy case takes an impact differently from plastic: it dents where plastic cracks, and it carries the bezel edge past the glass so the glass takes fewer direct hits. That is the practical argument for the extra weight on your wrist.

A tough smartwatch still has a soft point — the strap

Straps and lugs fail long before cases do, and a broken strap loses you the whole watch. Check the pin design before you trust it on a worksite or a trail.

Battery life is a durability feature outdoors

A watch that dies on day two is not durable in any way that helps you. Fifteen days of ordinary use is the design target here, and heavy GPS, calls and always-on display all draw it down. Health monitoring watch battery life explains what actually costs you the most.

What the health readings are, and are not

Continuous heart-rate trends and on-demand SpO2 estimates are wellness features. They vary with fit, motion and circulation, and they are not clinical measurements — the American Heart Association target heart rate guide is the reference for what heart-rate numbers mean. Anything you would act on belongs with a clinician.

More from the range: rugged smartwatches · GPS smartwatches · all health smartwatches · smartwatches for construction work. Health statements follow our editorial and research standards.

EnduroMax Smartwatch Frequently Asked Questions

What actually makes a smartwatch durable?

Three things, in order: the case and bezel design, the seals around the buttons and sensor, and the strap fixings. A durable smartwatch is built so the glass sits below the bezel edge, so water and dust have no easy route in, and so the strap will not part company with the case. Screen scratches and dead batteries are what people actually experience as failure, and neither is fixed by a thick-looking case alone.

Is a durable smartwatch heavier to wear all day?

A little, yes. A zinc-alloy case weighs more than a plastic one, and that is the trade you are making for impact resistance. Most people stop noticing within a few days, but if you want the lightest possible watch for sleep tracking, a lighter build is the better choice.

Which phones work with the EnduroMax smartwatch?

EnduroMax pairs with compatible Android phones and iPhones through Bluetooth 5.2 and uses the free Da Fit companion app.

Does EnduroMax require a subscription?

No. The companion app and the watch's listed calling, activity and wellness-tracking features do not require a monthly subscription.

How large is the EnduroMax AMOLED display?

EnduroMax has a 1.43-inch AMOLED display with a listed 466 by 466 resolution, up to 650-nit brightness and always-on display support.

How rugged is the EnduroMax smartwatch?

The watch uses a zinc-alloy case with reinforced sides, dedicated power and sport buttons, and listed IP68 and 1ATM water resistance.

Does EnduroMax track heart rate?

Yes. EnduroMax provides continuous heart-rate trend tracking for general wellness and fitness awareness.

Does EnduroMax measure blood oxygen?

EnduroMax provides on-demand SpO₂ estimates for reviewing general wellness and fitness trends. It is not intended for diagnosis.

What sleep and activity information does EnduroMax show?

The watch estimates overnight sleep patterns and records supported activity data such as steps, calories and distance in the companion app.

How many sports modes does EnduroMax have?

EnduroMax lists more than 100 sports modes for recording supported workout and activity data.

Can EnduroMax make calls without a phone nearby?

No. Calls use Bluetooth, so a compatible paired phone must remain within range. The watch's speaker and microphone handle the conversation.

How long does the EnduroMax battery last?

The 410mAh battery is listed for up to 15 days of typical use. Actual runtime varies with display, calling, notifications and monitoring settings; a full charge takes about 2.5 hours.

What is the EnduroMax return window?

EnduroMax orders are covered by a 30-day return window. Review the REXQU returns policy for the current terms and instructions.

Choose the EnduroMax Rugged AMOLED Smartwatch

Get a zinc-alloy outdoor smartwatch with a bright AMOLED display, 100+ sports modes, Bluetooth calling and up to 15-day listed battery life. Today: $149.97.

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$149.97
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