# TLDR Review: EF-12

*Published: 2024-09-16 | Updated: 2024-09-16 | Source: https://shopsavvy.com/reviews-tldr/ef-12*

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## Product: EF-12
**Brand:** ‎Epson

## Pros
- Provides detailed insights into sleep patterns, helping to improve sleep quality and daily energy levels.
- Tracks heart rate and fitness levels without being bulky or flashy, making it suitable for gym and casual use.
- Sleek and stylish design that remains discreet, comfortable enough to wear throughout the day, during workouts, and while sleeping.
- Offers 5-7 days of battery life, allowing for a convenient, set-it-and-forget-it experience.
- More comfortable and discreet compared to other fitness trackers, such as the Fitbit Charge 5.
- Combines functionality and fashion, making it a great choice for those seeking an effective yet subtle fitness tracker.
- Excellent navigation and persistent mapping for efficient cleaning.
- Rubber brush rollers are superior for pet hair and agitating carpet.
- Responsive and custom cleaning via Alexa integration.
- Suction power is strong, comparable to or better than other brands tested.

## Cons
- Accuracy of sleep tracking needs improvement, particularly with narcolepsy.
- Sometimes inaccurate in detecting sleep onset and sleep cycles.
- Considered pricey, especially for variations in color.
- Monthly subscription fee is viewed as unnecessary.
- Not capable of operating in complete darkness without smart lights.
- Shorter battery life compared to some competitors, requiring strategic scheduling.
- Older components used in the design and features.
- Lacks the Dual Pixel CMOS autofocus found in other models in the lineup.

## Bottom Line

This product offers a stylish, functional, and comfortable way to track fitness and sleep, with a battery life that lasts nearly a week. However, some users find the sleep tracking accuracy lacking and consider the price and monthly subscription fee to be drawbacks. If these concerns resonate with you, you might also consider looking at other fitness trackers with more advanced features.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Provides detailed insights into sleep patterns, helping to improve sleep quality and daily energy levels. | Accuracy of sleep tracking needs improvement, particularly with narcolepsy. |
| Tracks heart rate and fitness levels without being bulky or flashy, making it suitable for gym and casual use. | Sometimes inaccurate in detecting sleep onset and sleep cycles. |
| Sleek and stylish design that remains discreet, comfortable enough to wear throughout the day, during workouts, and while sleeping. | Considered pricey, especially for variations in color. |
| Offers 5-7 days of battery life, allowing for a convenient, set-it-and-forget-it experience. | Monthly subscription fee is viewed as unnecessary. |
| More comfortable and discreet compared to other fitness trackers, such as the Fitbit Charge 5. | Not capable of operating in complete darkness without smart lights. |
| Combines functionality and fashion, making it a great choice for those seeking an effective yet subtle fitness tracker. | Shorter battery life compared to some competitors, requiring strategic scheduling. |
| Excellent navigation and persistent mapping for efficient cleaning. | Older components used in the design and features. |
| Rubber brush rollers are superior for pet hair and agitating carpet. | Lacks the Dual Pixel CMOS autofocus found in other models in the lineup. |
| Responsive and custom cleaning via Alexa integration. |  |
| Suction power is strong, comparable to or better than other brands tested. |  |

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*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*