ESR Review
Based on online research and 80 ESR reviews, ESR's overall score is 4.1 out of 5 stars. ESR's review score is based on ESR's customer ratings, its brand popularity, its price competitiveness, as well as the breadth and quality of features it offers to customers. The ESR review table below incorporates summarizes 80 ESR ratings on 26 features. You can also compare ESR against popular alternatives like Casetify, Anker and OtterBox. Or you can view the top 50 brands in similar categories, such as electronic brands, cell phones & accessory brands and cell phone accessory manufacturers.
Brand popularity
eCommerce rating
Functionality
Ease of use
Build quality & design
Ergonomics & comfort
Store
Payment options
Shipping & returns policies
Coupons & discounts
Customer-specific discounts
Financing options
Company values, ethics & policies
Customer service & brand
Privacy policy & data security
Loyalty, rewards & partnership programs
Seasonal sales & events
ESR Review: ESR Pros & Cons
ESR (esrtech.com) is a well-known cell phone accessory brand which competes against other smart phone accessory manufacturers like Casetify, Anker, OtterBox, dbrand and Velvet Caviar. Based on our in-depth ESR review, when compared to its competitors, ESR is a mid-range performing brand within its category. Read the full Esrtech.com review below for more details.
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- Battery life: How long does each brand last between charges? How long is the battery life for each manufacturer?
- Screen quality: How is each brand's screen quality? How does each manufacturer's screen quality compare to others?
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- Storage space: How would you rate each brand's amount of storage space? How would you rate each manufacturer's storage space compared to its competitors?
- Warranty protection: How would you rate each brand's warranty protection? Does each manufacturer come with a warranty?
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- MagSafe compatibility: Does each brand offer MagSafe accessories? each manufacturer MagSafe compatible?
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ESR's strengths are:
Knoji has 80 ESR reviews and ratings as of June 18, 2026. Knoji editors and the Knoji shopper community have reviewed ESR and compared it against 1,815 top cell phone accessories brands, reviewing ESR based on product and store features. Knoji reviews and ranks Esrtech.com and other cell phone accessory manufacturers based on how many features each offers and based on a 5-star rating scale. Based on these factors and 80 ESR reviews, ESR earns an overall score of 4.1 out of 5.0 points. ESR offers 26 total features. ESR's review score also factors in its popularity, which is in the mid-range compared to competing .
ESR currently has 9 active discount codes. You can view all ESR's coupon codes here
