Nokia 5710 Unreleased Prototype B3.0: RM-187
Type: RM-187
💎 Rarity Index: X (Mystical Prototype)
⭐ WOW Factor: The only Nokia design where a single twist instantly switched the device’s personality: messaging, music, or camera.
👁 Evaluation in my collection: Great – 9/10
⏱ Life timer: 0m | 📦 Boxed: NO
📅 Release Year: 2006 | 💰 Release Price: N/A
📊 Units Sold: 0 unreleased
📰 Why this phone matters: The Nokia 5710 (RM-187) prototype represents one of the rarest and most technically fascinating chapters in Nokia’s experimental design era. Built in Finland as a late-stage engineering sample, this unreleased device was intended to become the successor to the Nokia 5700 XpressMusic – and the final evolution of Nokia’s iconic twist-mechanism platform.
Carrying the markings “Prototype ? Property of Nokia ? Not for Sale”, this RM-187 unit showcases hardware that never reached production: a redesigned rotating lower module, a reinforced hinge, and an upgraded rotary connector meant to eliminate the flex-cable failures seen on earlier twist models. Every piece of internal labeling, from its pre-production QR matrix to the B-series hardware stamps, confirms its status as an authentic high-level engineering device.
Unlike the retail 5700, the 5710 was slimmer, structurally stronger, and technically more advanced – an ambitious internal attempt to create the third-generation twist phone, following the 3250 and 5700. Development was ultimately halted, making RM-187 the final Nokia twist platform ever constructed.
The result is a prototype that combines unfinished industrial design, experimental hardware, and a form factor that was already disappearing from Nokia’s roadmap. With no retail release and only a handful of RM-187 boards ever confirmed, this piece stands as a true collector’s artifact – a preserved snapshot of a daring design direction that Nokia never shipped.
📝 Reviews when released: N/A 💔