Comparison

Embr Wave 2 vs Ozlo Sleepbuds

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Embr Wave 2

Control a wearable thermal device to manage temperature discomfort, stress, and improve sleep. Explore custom sessions, personalize settings, and track usage for better well-being.

Highlights
  • Explore thermal sessions for sleep, relaxation, and focus
  • Personalize device button programming
  • Customize temperature and session duration
  • Schedule automatic cooling and warming sessions
  • Track device usage and learn about your body
  • Receive app and firmware updates
Read full description

Unlock the full power of your Embr Wave thermal wristband with the Embr Wave 2 app. Embr Wave is the first clinically-validated thermal wearable + app that helps your body tap into its natural response to temperature to feel better. Using Embr Wave provides immediate relief from temperature discomfort, stressful moments, and can improve sleep. The Embr Wave 2 app is the "Mission Control” for your Wave device. A full menu of sessions is available in the app to help to crush that hot flash, sleep better, and focus on the task at hand. The app gives you access to ways to relax and unwind when you need it most or to keep your cool no matter the situation. From the office, to the plane, to your own bed—and even when walking into that next meeting or social event—your Wave has you covered. Use the Embr Wave 2 app to: - Explore thermal sessions designed for Sleep, Relaxation, Destressing, Hot Flashes, Focus, Personal Comfort, your guide to all things Embr Wave and personal temperature relief and control! - Ask Tempura anything about your Embr Wave. Learn how to improve how you feel with temperature, get immediate help with your Embr Wave, discover new features, and more. - Personalize your Wave by programming the buttons on the device for quick access to your favorite sessions. - Customize sessions by setting the temperature level (9 levels) and session duration (from 1 minute to 9 hours). - Save, edit, and rename your favorite sessions to your preferences. - Schedule your Wave to run cooling and warming sessions automatically at specified times. - Dim or turn off the lights on your device for an optimal sleep experience. - Track how you use the Wave to learn about your body over time. - Keep your Wave up to date with the latest features and improvements with app and firmware updates. The Embr Wave has received numerous awards, including Time Best Inventions honorable mention (2018); the AARP Innovator in Aging prize (2019); the Men’s Health Sleep Award (2020); the IF World Design Guide Award (2021), and the National Sleep Foundation Sleep Tech Award (2023).

About

Ozlo Sleepbuds

Tiny, comfortable earbuds designed for sleep. They offer all-night battery, noise blocking, and audio streaming. The companion app personalizes settings and provides sleep data reports.

Highlights
  • Ultra-comfy, low-profile design
  • All-night battery life (up to 14 hours)
  • Noise blocking for disruptive sounds
  • Bluetooth audio streaming
  • Personal in-ear alarm
  • Sleep modes and timer
  • Sleep pattern and environmental insights
Features
Read full description

Ozlo Sleepbuds® 2 are tiny, ultra-comfy earbuds designed to give you the best sleep of your life. They come with all-night battery life, noise blocking, audio streaming, and biometric sensing. The Ozlo app allows you to personalize your Sleepbuds experience, with controls for all your important settings and reports for your sleep data. LUXURIOUS COMFORT Sleepbuds are surrounded with super soft, squishy silicone tips for unparalleled all-night comfort, even for side sleepers. And they're specifically designed to be low profile, so they don't stick out causing undue pressure on your ear like other earbuds. LONG BATTERY LIFE Sleepbuds can play for up to 14 hours for all-night noise masking or streaming. The Smart Case can provide 2-3 additional charges so you can take it with you anywhere you go. SOUND, DESIGNED FOR SLEEP Sleepbuds come with precisely tuned sound that helps to reduce the impact of disruptive noise like snoring, traffic, pets, and noisy neighbors. BLUETOOTH STREAMING Your bedtime routine, your way. Stream music, podcasts, audiobooks, and soundscapes that help you relax before falling asleep. PERSONAL IN-EAR ALARM Sleepbuds private in-ear alarm gently wakes you through your Sleepbuds instead of filling the room with sound. SLEEP MODES Choose how your Sleepbuds transition into your Sleep Sound throughout the night. Whether you prefer it to start immediately, after a timer, when you fall asleep, or after streaming ends, there’s a mode that fits your routine.ontrol how your Sleep Sound works through the night. PHONE-FREE CONTROLS The new Smart Case button gives you quick, simple control over your Sleepbuds without needing to reach for your phone in the dark. TIMER Automatically turns off streaming audio or Sleep Sounds after a set amount of time, so your audio doesn't need to play all night long. SLEEP PATTERNS See how your sleep improves over time with insights into your duration, consistency, and efficiency. ENVIRONMENTAL SENSORS Discover what shapes your sleep. Your Smart Case tracks your room’s noise, light, and temperature to reveal how your environment affects your sleep over time.

Screenshots

Embr Wave 24 screens
Ozlo Sleepbuds4 screens

Verdict

The call

The clearest difference is ads: Ozlo Sleepbuds at none against Embr Wave 2's shown. Ozlo Sleepbuds also leads on update cadence (weekly vs every 2 months) and monetization model (free vs free with in-app purchases). Embr Wave 2's advantage is review sentiment (72% vs 44%) and iOS requirement (15.5 vs 18.0). On price, rating, ratings volume and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Embr Wave 2 against 4.7 for Ozlo Sleepbuds. Both are backed by a comparable volume of ratings — 4K and 2.8K respectively. Written reviews are what separate them: 72% of Embr Wave 2's written reviews are positive against 44% of Ozlo Sleepbuds's.

UpkeepUpdate frequency

Embr Wave 2 ships an update every 2 months, Ozlo Sleepbuds weekly. Both last shipped on November 7, 2026.

Scorecard5 real differences · 5 level
Embr Wave 2 versus Ozlo Sleepbuds: the parameters behind the verdict, then further details
ParameterEmbr Wave 2Ozlo Sleepbuds
PriceFreeFree
Rating4.8 (4K ratings) — better4.7 (2.8K ratings)
Positive reviews72.4% of reviews — better44.4% of reviews
Number of ratings4K — better2.8K
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better18.0
Further details — not scored
Size50 MB275 MB
Age rating12+12+
DeveloperEmbr Labs Inc.Drowsy Digital Inc.

Customer experience

Embr Wave 2

All ratings3,618 ratings
Positive95.3%
Neutral3.7%
Negative1.0%
Written reviews87 reviews
Positive72.4%
Neutral8.0%
Negative19.5%

Ozlo Sleepbuds

All ratings2,803 ratings
Positive92.8%
Neutral1.7%
Negative5.5%
Written reviews385 reviews
Positive44.4%
Neutral13.5%
Negative42.1%

User reviews

Embr Wave 2

From 4K App Store ratings

What we love

  • 🚀 Effective at cooling/warming
  • 👍 Helps with hot flashes, night sweats, and sleep issues
  • 👍 Easy to use and navigate
  • 👍 Versatile for various use cases (Raynaud's, anxiety, etc.)
  • 👍 Positive impact on quality of life

Room to improve

  • 🐛 Connectivity issues with app
  • 🐛 Firmware/software compatibility problems
  • 🔋 Battery life concerns
  • 💡 Desire for more advanced features (Apple Watch integration, automatic mode, etc.)

Ozlo Sleepbuds

From 2.8K App Store ratings

What we love

  • 💤 Comfortable for side sleeping
  • 🌙 Helps with sleep and tinnitus
  • 🔕 Blocks out noise like snoring
  • 🕰️ Alarm wakes user without disturbing partner
  • 🔊 Good sound quality and variety of sleep sounds

Room to improve

  • 🔌 Battery life issues, drains quickly
  • 📶 Bluetooth connectivity problems, frequent disconnections
  • 🤖 Glitchy app with stability and UX problems
  • 🔊 Limited volume control and sound options
  • ⚠️ Mandatory updates cause disruptions

Bugs and requests

Embr Wave 2

Reported bugs

3 issues
  • Connectivity issues between device and app
  • Firmware/software compatibility problems with newer devices
  • Battery life draining faster than expected

Requested features

4 requests
  • Apple Watch integration
  • Automatic mode/detection of hot flashes
  • More customization options
  • Improved app functionality and stability

Ozlo Sleepbuds

Reported bugs

4 issues
  • Earbuds not charging properly in case
  • Sync issues between left and right earbuds
  • App fails to connect or update firmware
  • Sleep timer function is not working as expected

Requested features

4 requests
  • Allow custom sleep sounds and playlists
  • Add phone-free mode to use without app
  • Improve alarm features to work with phone alarms
  • Expand sound library with more options like nature sounds

In-app purchases

None

Embr Wave 2

No in-app purchases

None

Ozlo Sleepbuds

No in-app purchases

Questions

Is Embr Wave 2 free?
Embr Wave 2 is free to download, with no in-app purchases.
Is Ozlo Sleepbuds free?
Ozlo Sleepbuds is free to download, with no in-app purchases.
Which has better reviews, Embr Wave 2 or Ozlo Sleepbuds?
Embr Wave 2 is rated higher. Embr Wave 2 averages 4.8 out of 5 from 4K ratings, while Ozlo Sleepbuds averages 4.7 from 2.8K ratings.
Do Embr Wave 2 or Ozlo Sleepbuds have ads?
Embr Wave 2 shows ads; Ozlo Sleepbuds does not.
Which is updated more often, Embr Wave 2 or Ozlo Sleepbuds?
Embr Wave 2 ships an update every 2 months, and Ozlo Sleepbuds weekly. Most recently, Embr Wave 2 was updated on November 7, 2026 and Ozlo Sleepbuds on November 7, 2026.

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