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| Feature | | Model XT4 | ProCore 9 | Echo 500 | | :--- | :--- | :--- | :--- | :--- | | Peak Power | 275W / 1200Nm | 260W / 1100Nm | 280W / 1050Nm | 250W / 950Nm | | Battery Life (Heavy use) | 8-10 hours | 6-7 hours | 7-8 hours | 5-6 hours | | Weight | 2.4 lbs (1.1kg) | 3.1 lbs (1.4kg) | 2.9 lbs (1.3kg) | 2.7 lbs (1.2kg) | | Warranty | 5 Years Limited | 3 Years | 2 Years | 3 Years | | Smart Features | Full IoT + App | Basic Bluetooth | None | Proprietary Dongle | | Noise Level (Max) | 72 dB | 88 dB | 91 dB | 85 dB |

Comfort is key for daily wear. These frames are designed with a specific , providing a balanced fit for most face shapes: Lens Width: 54 mm Bridge: 15 mm Temple Length: 140 mm 4. Versatility and Value juq275 best

stands out because it provides this high resolution along with a fast | Feature | | Model XT4 | ProCore

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