Product Highlights
- Metabolism tracker
- Measures CO2 from breath
- Determines if body is using fats or carbs
- Small, hand-held device
- Long battery life
Categories: Technology
In-Depth Review
Lumen Review 2025: A Metabolism Tracker That Works?
Author: Caroline Lubinsky, CF-L1
Pros & Cons
Pros
- Makes me more mindful of what I’m eating
- Portable and easy to take places
- High-quality hardware
- Sleek packaging and aesthetically pleasing
Cons
- Expensive; almost $250 for 6 months of use
- Cannot be used without the subscription service
- Integrations are limited
Specs
| Price |
Between $249-$349 |
| Battery Charge |
Lasts up to 14 days w/out charge |
| Sensor |
CO2 |
| Dimensions |
102mm x 41.4mm x 33.3mm |
| Connectivity |
Apple iPhone 6 and later; Android |
| Battery |
Lithium polymer battery |
| Connection for charging |
USB-C |
Product Summary
All in all, I think the Lumen could really work for specific people to be more conscious about what they’re putting into their bodies.
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