B.Line hardware / a platform, not a closed object

Made to feel.
Built to be yours.

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

The screen is not the only interface.

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.

Top-down view of the full B.Line QWERTY keyboard
01

Mechanical QWERTY Slider

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

Close view of B.Line's knurled central thumb-wheel directly beneath the keyboard
02

Centred Thumb-Wheel

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

The dedicated mechanical camera shutter on the B.Line chassis rail
03

Two-Stage Mechanical Shutter

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

Open it.
Keep it yours.

A battery you can change. Storage you can expand. A microphone you can physically disconnect. Ownership goes beneath the backplate.

B.Line with its rear cover removed to expose the service bay
01

Zero Obsolescence

Pop the backplate off. B.Line rejects sealed, disposable slabs in favour of full mechanical agency.

02

User-Swappable Battery

Swap the core power cell in thirty seconds. No heat guns, no adhesive strips, no service centres.

03

Dual SIM + MicroSD

Two physical nano-SIM trays paired with an expandable microSD slot supporting up to 2TB of private offline storage.

04

Master Hardware Kill Switch

A physical switch beneath the plate that isolates the microphone array circuit at the hardware trace level.

The HexKey chassis dock

It docks.
It doesn't dangle.

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.

  • Quick-release, physical lock
  • Designed for straps and lanyards
  • Part of the chassis, not an accessory loop
The hexagonal HexKey strap dock at the far left of B.Line's bottom edgeHexKey strap dock

Audiophile roots

The good port is back.

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 wired headphone connection
  • Integrated digital-to-analogue conversion
  • No adapter required for a proper listen
The circular 3.5mm headphone jack between the HexKey dock and USB-C charging port3.5mm headphone jack

PortKeeper / planned accessory concept

The plug you don't lose.

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.

  • Helps keep dust, pocket lint and everyday splash away from USB-C
  • Tethered to the chassis, not a loose cap to misplace
  • Low-profile pinky cushion for a softer one-hand hold

Planned concept. Final materials, fit and ingress performance will be validated in prototype testing.

Close view of B.Line with a rose-pink tethered USB-C PortKeeper plug and pinky cushion

The deliberate details

Built for a more physical life.

Every early B.Line feature earns its place by doing something a flat screen cannot: giving you an action you can trust without looking.

01

Slide keyboard

Mechanical travel for messages, captions and a proper note in the middle of a thought.

02

Thumb-wheel

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

03

Camera shutter flaps

Planned physical covers for both lenses: a visible boundary, not a settings menu.

04

Master Hardware Kill Switch

A physical switch beneath the plate that isolates the microphone array circuit at the hardware trace level.

05

Programmable RGB light

A front-facing status light you can set by colour for the calls and people worth seeing at a glance.

06

PortKeeper pinky rest

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

Hold on to your phone.
Plug into your music.

Mechanical security and wired sound, built into the frame. SOS sharing requires a working connection and a configured trusted circle.

01

HexKey Anti-Theft Dock

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.

02

Amber SOS Safety Control

A dedicated, textured emergency button. Hold firmly for five seconds to instantly broadcast live distress signals and GPS coordinates to your trusted circle.

03

Audiophile 3.5mm Port & DAC

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

Personal isn't a colourway.

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

Useful can still be beautiful.

The rear cover is designed to be replaceable. Start with one B.Line core, then make it your colour, your texture and your ritual.

Planned concept01
Pink B.Line Vanity Compact rear cover with an open mirror below the clear camera cut-out

Vanity Compact

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.

Planned concept02
Pink B.Line Creator Grip rear cover with a central honeycomb of micro-suction cups

Creator Grip

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.

Planned concept03
Olive B.Line Night Out rear cover with integrated bottle opener and nicotine-pouch holder

Night Out

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