How Zombie Brands and ODMs Flood Amazon With Identical Tech
Contract manufacturers like J-Style supply identical hardware to dozens of storefronts, turning heritage names into licensing vehicles.

A sprawling network of Asian contract manufacturers is quietly supplying the same hardware to dozens of competing storefronts on Amazon, exploiting a brand-licensing economy that lets defunct names and apparel companies sell electronics they never engineered. For consumers searching for cheap smart rings or fitness trackers online, the real manufacturer is rarely the name printed on the box.
The financial mechanics driving this supply chain rely on Original Device Manufacturers (ODMs) absorbing the research, development, and tooling costs. Companies like J-Style advertise rapid white-label services on their websites, offering custom packaging and logo placement for off-the-shelf designs. This model shifts nearly all market-entry risk away from the brand owner and onto the retail buyer, according to Engadget.
Major corporations have utilized contract manufacturing for decades. Sony previously sourced television panels from Samsung and LG before eventually selling its TV business to TCL. The current wave of white-label electronics operates differently. Rather than commissioning bespoke designs from factories, brands purchase pre-existing inventory. Engadget reported that identical gimbal cameras are sold under the Ordro UHD-M5, AgfaPhoto Realimove MC3X, and Minolta Showtime MN5KG100 labels, utilizing the exact same product photography on their Amazon listings.
Smart rings illustrate how deeply ODM penetration has reached into wearable technology. Devices marketed by Fittr, Qalo, and Insix trace back to the J-Style X1 hardware, Engadget found. The Reebok/F50 smart ring, distributed by The Original Fit Factory, closely mirrors J-Style’s X6 model. Reebok licenses its name across entirely unrelated product categories to separate operators: RFE International handles exercise equipment, Mondottica manages eyewear, Lucyd produces smart glasses, and CE Brands/Vitalist manufactures smartwatches.
Heritage names purchased out of bankruptcy—often referred to as zombie brands—serve as the primary vehicle for these transactions. Kodak’s trademark has been divided among numerous unrelated entities. Motorola, now a Lenovo-owned mobile division that stopped manufacturing its own wearables nearly a decade ago, relies on licensees for its watches. Engadget noted that the 2026 Moto Watch is produced by CE Brands/Vitalist, the same firm behind Reebok’s smartwatch.
Amazon search results expose the scale of this duplication in the budget fitness tracker segment. Listings under the names YJYK, Nhemeylp, Spurkey, Moremore, and Flywin use identical promotional images, occasionally altering only the digital watch face rendered on the screen. The underlying specifications—1.1-inch AMOLED touchscreens, 25 sport modes, matching sensor arrays—are uniform across every listing. All five brands direct users to download the same companion software, Keep Health, confirming the devices originate from a single production line.
Genuine hardware developers typically publicize their engineering processes and design iterations. White-label sellers avoid independent technical scrutiny. Products lacking reviews outside of customer feedback posted directly on the retail page indicate a deliberate strategy to bypass professional evaluation, Engadget reported.











