
Mechanical QWERTY Slider
A fluid aerospace sliding mechanism reveals a full, tactile keyboard, clearing your display of digital keys.
B.Line hardware / a platform, not a closed object
Brushed metal. Real keys. A replaceable rear cover. Every surface brings something useful to the way you carry, create and connect.
Modular concepts are planned and subject to prototype validation.
The mechanical language
B.Line is being designed around actions that feel obvious in the hand: slide, turn, close, mute. The point is not nostalgia. It is certainty.

A fluid aerospace sliding mechanism reveals a full, tactile keyboard, clearing your display of digital keys.

Milled directly beneath the keyboard. Scroll feeds, place text cursors character-by-character, dial camera zoom, and adjust audio volume without lifting your thumbs.

Dedicated hardware button on the chassis rail. Half-press to lock tactile focus and exposure; full-press to capture the shot.
The unsealed chassis / planned specification
A battery you can change. Storage you can expand. A microphone you can physically disconnect. Ownership goes beneath the backplate.

Pop the backplate off. B.Line rejects sealed, disposable slabs in favour of full mechanical agency.
Swap the core power cell in thirty seconds. No heat guns, no adhesive strips, no service centres.
Two physical nano-SIM trays paired with an expandable microSD slot supporting up to 2TB of private offline storage.
A physical switch beneath the plate that isolates the microphone array circuit at the hardware trace level.
The HexKey chassis dock
A lanyard should never feel like an afterthought. HexKey is a spring-loaded hexagonal bayonet connection milled directly into the B.Line frame, designed to lock heavy-duty straps into the phone with a deliberate click.
HexKey strap dockAudiophile roots
The intended B.Line audio path pairs a standard 3.5mm headphone jack with an integrated digital-to-analogue converter. Plug in, press play and keep the sound exactly between you and the music.
3.5mm headphone jackPortKeeper / planned accessory concept
PortKeeper is a soft silicone USB-C plug that seats in the charging port when you are not charging. A flexible tether keeps it with the phone, while a shallow pinky cushion underneath gives your grip somewhere more comfortable to land.
Planned concept. Final materials, fit and ingress performance will be validated in prototype testing.

The deliberate details
Every early B.Line feature earns its place by doing something a flat screen cannot: giving you an action you can trust without looking.
Mechanical travel for messages, captions and a proper note in the middle of a thought.
Milled directly beneath the keyboard. Scroll feeds, place text cursors character-by-character, dial camera zoom, and adjust audio volume without lifting your thumbs.
Planned physical covers for both lenses: a visible boundary, not a settings menu.
A physical switch beneath the plate that isolates the microphone array circuit at the hardware trace level.
A front-facing status light you can set by colour for the calls and people worth seeing at a glance.
A tethered silicone USB-C plug that protects the port between charges and makes a one-hand hold feel better.
Physical security & audio / planned specification
Mechanical security and wired sound, built into the frame. SOS sharing requires a working connection and a configured trusted circle.
A spring-loaded hexagonal bayonet lock machined into the alloy frame. Click heavy-duty straps directly into the structural chassis for ultimate high-street snatch prevention.
A dedicated, textured emergency button. Hold firmly for five seconds to instantly broadcast live distress signals and GPS coordinates to your trusted circle.
Gold-plated 3.5mm wired headphone jack driven by a high-grade integrated Digital-to-Analogue Converter (DAC) for uncompromising, zero-latency lossless sound.
A surface with a future
The removable rear is intended to let your phone move with your day, your work and your style — without replacing the whole object.
These are future-facing hardware concepts, not promises of a final production specification. The next step is building CNC prototypes and testing what deserves to exist.
Planned backplate concepts
The rear cover is designed to be replaceable. Start with one B.Line core, then make it your colour, your texture and your ritual.

Your mirror, already with you. Flip it open for makeup on the train or a quick check before you arrive. The camera opening stays clear.

A sculpted suction back for windows, mirrors and smooth glass. Stick it, step back and make the content instead of balancing your phone on whatever is nearby.

A hard-wearing olive rear with a bottle opener and a sealed nicotine-pouch holder—two night-out essentials made part of the object.