Hardware guide

Everything PDS runs on is off the shelf.

No proprietary hardware, no lease, no lock-in. A consumer Android tablet, a clamp mount, and the vehicle’s own power are a complete, compliant passenger display — this page lists exactly what to buy.

Models and prices checked July 2026 · indicative UK prices

Minimum spec

What a tablet needs to run PDS.

Operating system

Android 8.0+ with Google Play services

Any mainstream Android tablet qualifies. Google Play services is required — route updates arrive by Google push messaging, and PDS checks for it at setup. Some industrial and imported tablets ship without it; check before buying.

Screen

11–13″ recommended

Passenger text renders at the regulated physical size — at least 22 mm tall — so a larger screen shows more at once. Smaller screens still comply: the display adapts its layout rather than shrinking the text.

GPS

Built-in GPS

Stop detection and announcements are driven by the tablet’s own GPS. Cellular models always include it; a few Wi-Fi-only models omit it — check the specification sheet.

Audio out

Bluetooth or 3.5 mm

Announcements play through a Bluetooth speaker, a wired connection, or the tablet itself on smaller vehicles. PDS warns the driver if a Bluetooth speaker disconnects mid-journey.

Connectivity

Cellular recommended

Journeys run fully offline — routes and audio are stored on the tablet beforehand. A SIM means tablets pick up route changes anywhere; Wi-Fi-only tablets sync whenever they’re back on depot Wi-Fi.

Tablets

Three that we’d buy today.

Budget

Samsung Galaxy Tab A11+

11″ · from ~£199

A current mainstream 11-inch tablet with a 5G option. Meets every PDS requirement at the lowest sensible price — the right starting point for most operators.

RecommendedWhat PDS is developed on

Lenovo Tab P12

12.7″ · from ~£260

The tablet family PDS is developed and hardware-tested on. The larger screen carries more passenger information at the regulated text size, and it reads well down a bus saloon.

Rugged option

Samsung Galaxy Tab Active5 5G

8″ · ~£509

Drop-rated and glove-friendly, but rugged tablets are built for field work, so they run small — 8 inches is a modest passenger display. For most vehicles, a consumer tablet in a case on a secure mount is the better buy.

Named models are a point-in-time snapshot — any tablet meeting the spec above works just as well.

Mounting

Every bus already has somewhere to put it.

Grab poles run the length of every bus saloon, and pole-clamp tablet mounts are a solved problem. Clamp the tablet at standing eye level, facing down the saloon, and it’s visible from most seats.

Trial and pilot

Universal clamp mount

~£20–£40

Widely available clamp and pole mounts hold 6–14″ tablets on any grab pole. Quick to fit and easy to move between vehicles — right for trying PDS out.

Fleet-grade

RAM Mounts Tough-Claw + tablet holder

~£90–£120

The vehicle-mounting standard: a tool-free clamp for rails from 16 mm to 57 mm with a sprung tablet holder, stainless hardware, and vibration in mind. Fit it and forget it.

For vehicles left unattended, lockable tablet enclosures fit the same mounts.

Power

The vehicle already generates the power.

Use the vehicle’s power

Buses and coaches run 12 V or 24 V electrics, and most modern coaches already have USB sockets fitted. A dual-USB 12/24 V adapter (~£10–£20) plugs into an accessory socket, or any auto electrician can hardwire one next to the mount.

Battery alone is for trials

GPS and a bright screen draw hard on a battery. A tablet will happily run single journeys on its own cell, but for daily service treat vehicle power as part of the install.

Speakers

Any decent speaker announces clearly.

Announcements are pre-rendered spoken audio, so there’s nothing exotic to reproduce. Pair a Bluetooth speaker mounted mid-saloon — PDS warns the driver if it disconnects — or use the vehicle’s PA where one is fitted. On smaller vehicles the tablet’s own speaker is enough.

Full-size buses

JBL Flip 7

~£130

Loud and clear enough to fill a full-size saloon, with all-day battery if it isn’t wired to power.

Smaller vehicles

Anker Soundcore class

~£30

A compact budget speaker is ample for minibuses and midibuses — announcements are clear spoken audio, not music.

Voice-first

Ultimate Ears Wonderboom 4

~£90

Carries a dedicated spoken-word mode that keeps announcements crisp at volume.

Cost

A vehicle equipped from about £240.

Tablet — Samsung Galaxy Tab A11+£199
Clamp mount£25
12/24 V USB adapter£15
Per vehicle~£240

About £270 with a dedicated speaker. Indicative UK prices, July 2026. One-off — the hardware is yours.

Hardware is the easy part.

Sign up, build a route, and pair a tablet — the display and every announcement come from PDS.