Check the serial number first
This is the single most important thing to know before buying a Vader 5 Pro in 2026. Units shipped before April 2026 — serial numbers up to and including NLFL261106040 — had two documented problems: the stepless tension rings could slip during aggressive aiming sessions, and back-button durability was inconsistent enough to generate multiple Reddit and Discord complaint threads. Flydigi listened. The V2 batch, shipping since April 2026, replaces the stepless design with a ratchet/stepped mechanism that physically clicks into position and stays there. The back buttons got toughened internals.
Retail is the wild west on this. GadgetHyper explicitly confirmed all their current stock is V2. Amazon third-party sellers, Newegg, and eBay may ship whatever they have in the warehouse. If you buy from a random reseller, expect to check the serial on the box before opening. If the number is above NLFL261106040 or the ring clicks into detents when you turn it, you have a V2. If it turns smoothly with no detents, you have a V1 — return it or accept the trade-off.