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Nokia 5710 Unreleased Prototype B3.0: RM-187
Quick View💎 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 💔
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Nokia 6810 Prototype B3.0 : Engineering Sample
Quick View💎 Rarity Index: S (Ultra Rare)
⭐ WOW Factor: A pre-RM Nokia 6810 prototype from Finland-capturing the birth of Nokia’s most original fold-out QWERTY design.
👁 Evaluation in my collection: Great – 9.5/10
⏱ Life timer: 0 | 📦 Boxed: NO
📅 Release Year: 2004 | 💰 Release Price: ~350 €
📊 Units Sold: ~700k (final units)
📰 Why this phone matters: A rare early-stage prototype of the Nokia 6810, the business-class messaging phone famous for its fold-out QWERTY keyboard design. This internal test unit predates the commercial RM-2 variant and carries blank “Model XXXX / Type XXXX” fields, together with the unmistakable “Property of Nokia” and B3.0 engineering markings. Built in Finland and never intended for sale, it represents the development phase where Nokia refined the mechanical flip-out keyboard and RF tuning for one of its most innovative business devices.📝 Reviews when released: Mobile Review 🔗
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Nokia 7500 Prism Prototype B3.0: Engineering Sample | Unreleased Gray Colour
Quick View💎 Rarity Index: X (Mystical Prototype)
⭐ WOW Factor:
👁 Evaluation in my collection: Great – 9.5/10
🕵 Nokia Codename: Scorpion
⏱ Life timer: 4m | 📦 Boxed: NO
📅 Release Year: 2007 | 💰 Release Price: ~230 €
📊 Units Sold: ~1M (final units)
📰 Why this phone matters: Nokia 7500b Prism – RM-250 PROTOTYPE (Codename: SCORPION) – a genuine engineering sample from Nokia’s internal development program. Features prototype IMEI (004401?), HWID exposure, pre-final RF labeling, and early R&D markings. This unit also includes a rare, unreleased graphite/metallic grey prototype housing used only on SCORPION pre-production builds before final Prism colours were approved. A highly valuable and historically significant prototype from the Prism design era📝 Reviews when released: Mobile Review 🔗
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Nokia E61 Prototype B3.0 : The “Smailer” | Unreleased Rare Black and Silver colour
Quick View💎 Rarity Index: S (Ultra Rare)
👁 Evaluation in my collection: Great – 9.8/10
🕵 Nokia Codename: Smailer
⏱ Life timer: 0 | 📦 Boxed: NO
📅 Release Year: 2006 | 💰 Release Price: ~250 €
📊 Units Sold: ~1M (final units)
📰 Why this phone matters: This unit is a remarkable historic artefact: a prototype Smailer RM-89 hardware build of the Nokia E61, finished in an unreleased two-tone silver and black housing that never reached consumer production. The color layout is unlike any retail E61, combining a silver frame with a black upper section and a unique keypad palette that does not exist on final units. The keypad itself uses a mixed color scheme reminiscent of the later E62 look, but with a configuration that was never approved for market release.Inside the casing you find the clearest testimony to its origin: model field XXXX, prototype build B3, product code 0523307, internal R&D IMEI beginning with 004400, and full Property Of Nokia, Not For Sale, Made In Finland labeling. This confirms the phone as an authentic preproduction engineering unit created during early development cycles before cosmetic design and final materials were locked down.
Externally the device presents the full QWERTY keyboard layout, 5-way joystick and wide landscape display that defined the E61 family. Yet this prototype stands apart because of its unreleased finish: a rare two-tone silver and black shell matched with a hybrid keypad coloring that blurs the line between E61 and E62 aesthetics. The magnesium-alloy structure and rugged business-class construction already appear in place, but the cosmetics clearly represent a transitional stage in Nokia’s decision process.
Although this prototype may never have carried final firmware or passed network certification, its hardware is essentially complete. It captures a frozen moment when Nokia was experimenting with materials, colors and layouts for what would become one of the defining smartphones of the business-centric Eseries. For collectors and historians, this unit is far more than a phone: it is a one-off window into Nokia’s internal design evolution, a rare glimpse of what the E61 might have looked like had this striking silver-and-black, E62-influenced combination reached the market.
📝 Reviews when released: All About Symbian 🔗
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Nokia N96 Prototype B3.0 | Unreleased N00 label
Quick View💎 Rarity Index: S (Ultra Rare)
👁 Evaluation in my collection: Great – 9.7/10
🕵 Nokia Codename: Lumiere
⏱ Life timer: 136h | 📦 Boxed: NO
📅 Release Year: 2008 | 💰 Release Price: ~500 €
📊 Units Sold: ~3M (final units)
📰 Why this phone matters: Nokia N96 is a high-end smartphone, announced by Nokia on February 11, 2008 at the Mobile World Congress in Barcelona, part of the Nseries line.The N96 runs on the updated Symbian OS v9.3 (S60 3rd Edition, FP2). It is compatible with the N-Gage 2.0 gaming platform and also has a DVB-H television tuner.
Compared to the popular Nokia N95 8GB, the N96 has a doubled flash storage capacity (16 gigabytes), dual LED flash in the camera, and has a slimmer design. However critics had negative views on the N96’s battery life and user-unfriendlyness and its downgraded CPU clock speed raised questions.It was one of 2008’s most anticipated mobile phones, but its launch was delayed and was only widely available from October 2008.It is thus considered to have been a commercial failure.Critics felt that the Nokia N85 provided more new additions compared to the N96 for much cheaper.📝 Reviews when released: Mobile Review 🔗






