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Mini Chainsaw，6-Inch Brushless Motor Cordless Chainsaw with 2 Batteries 

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1.2Gbps Home Signal Amplifier w/Ethernet Port Covers Up to 10000 Sq.ft and 36 Devices, Dual Band 5.8GHz&2.4GHz

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Product Overview

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e are the key features and what they mean:

  • 24/7 Heart-Rate Monitoring: Devices use a sensor (usually optical PPG) to continuously monitor your heart rate throughout the day and night. androidpolice.com+1
  • SpO₂ (Blood Oxygen Saturation) Sensor: Measures the percentage of oxygen in your blood. Helpful for sleep monitoring (e.g., drops during REM) and general health awareness. Best Buy Blog+1
  • Sleep Tracking: Should track sleep stages (light, deep, REM), and ideally correlate with your SpO₂ and heart‐rate data for better insight. mint+1
  • Reliable App / Ecosystem: The manufacturer’s app should present your data clearly and allow you to track trends—not just single readings.
  • Comfort & Wearability: Because you’ll wear it all day AND night, the band should be comfortable for sleep, sweat, and daily wear.
  • Battery Life / Charging: Good trackers last multiple days between charges.
  • Accuracy & Reliability Notes: Optical sensors (on the wrist) have limitations: for SpO₂ especially, accuracy can vary depending on motion, skin tone, fit, etc. arXiv+1

🛍 Recommended Models

Here are some models you can check on Amazon Canada (availability/pricing may vary). I’m not linking directly, but you can search by name on amazon.ca. Always check specs carefully for the SpO₂, sleep & HR features.

  • Amazfit GTS 4 Mini: Lists “24H heart-rate monitoring and blood oxygen monitor”. mint
  • Fitbit Charge 4: Frequently noted in reviews as a strong health tracker with SpO₂ monitoring + 24/7 HR + sleep tracking. Relax The Muscle
  • Apple Watch Ultra 2 (if you’re using iOS & want high-end): Includes HR, ECG, SpO₂. mint

🧭 My Recommendation

If I were to pick one product for a good balance of features + price (in Canada), I’d lean toward the Amazfit GTS 4 Mini. It explicitly lists the continuous HR + SpO₂ + sleep features, and tends to cost less than high‐end smartwatches.
If you have an iPhone and want premium features, go with the Apple Watch Ultra 2.
If you want something more fitness‐focused but not a full smartwatch, the Fitbit Charge 4 is a solid mid‐tier choice.

If you like, I can check current listings on Amazon Canada (with live pricing, availability, Canadian warranties) for 5-10 models that meet your criteria (heart rate, sleep tracking, SpO₂). Would you like that?

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