Shearwater Perdix 3 + Swift GPS Transmitter
The Shearwater Perdix 3 is already one of the most capable dive computers on the market — full technical diving support, a stunning 2.4" AMOLED display, and air integration built to grow with you. Pair it with the Shearwater Swift GPS Transmitter and you get a complete, future-proof dive system that monitors your tank pressure, tracks your deco, and logs exactly where in the world you made that dive.
The Swift GPS transmitter bolts straight into your first-stage HP port and does two jobs at once: it sends real-time tank pressure wirelessly to the Perdix 3, and it captures your GPS entry and exit coordinates at the surface using multi-constellation GNSS (GPS, Galileo, and BeiDou). When you sync with the Shearwater Cloud app, those coordinates map your dive site, display nearby site names where available, and build up a global picture of everywhere you've ever been underwater. For travelling divers, liveaboard regulars, or anyone who cares about their dive log being genuinely useful rather than just a list of numbers, this is a meaningful upgrade.
The Perdix 3 supports up to four wireless transmitters simultaneously, so whether you're running a single recreational set-up today or planning twin cylinders and deco gases down the line, this bundle is the starting point — not the ceiling. You only ever need one Swift GPS transmitter per dive to record location data, regardless of how many transmitters are in use.
Features:
- 2.4" AMOLED Display — 450×600 resolution, full colour with true blacks. Significantly more readable than LCD dive computers in both bright shallows and low-visibility depths.
- Full Technical Diving Support — Bühlmann GF algorithm with trimix support, multi-gas OC Tec mode, CCR fixed PPO₂ mode, and complete decompression management. This is a proper technical computer.
- Surface GPS Logging via Swift GPS Transmitter — Multi-constellation GNSS (GPS, Galileo, BeiDou) captures entry and exit coordinates at the surface. ~4 m location accuracy. Mapped in the Shearwater Cloud app.
- Real-Time Wireless Air Integration — Swift GPS transmitter monitors tank pressure and transmits it directly to the Perdix 3. Perdix 3 supports up to four transmitters simultaneously.
- Scalable Multi-Transmitter System — Start with this single-transmitter bundle. Add up to three more Shearwater transmitters as your configuration evolves — no computer upgrade required.
- User-Replaceable AA Battery (Computer) — Swap a standard AA battery in seconds. Up to 60 hours runtime on a lithium AA. No charging cables, no proprietary cradles.
- User-Replaceable CR2 Battery (Transmitter) — Simple, travel-friendly power. Rated for up to 100 one-hour dives with GNSS surface capture active.
- Titanium Bezel & Armoured Casing — Precision-machined titanium bezel and piezo-electric touch buttons. Built to handle serious diving without looking like it.
- Three Independent Profiles — Save three separate computer configurations and switch between them instantly — useful if you mix recreational, technical, and freediving.
- 3-Axis Tilt-Compensated Digital Compass — Accurate heading regardless of wrist angle, displayed on the dive screen.
- Freediving Mode — Configurable sampling rates, vibration alerts (depth and time-based), and dedicated freediving alarms.
- Strong Vibration Alerts — Shearwater's most powerful vibration motor. Feel alerts in low-vis or freediving without checking the screen.
- High-Speed Bluetooth — 6× faster dive log sync and firmware updates to the Shearwater Cloud app (iOS & Android).
- ~1,000 Hours Onboard Log Storage — Years of dive history stored on the computer itself.
- 200 m Depth Rating (Transmitter) / 260 m (Computer) — Both components are rated well beyond recreational limits.
- Advanced Collision Avoidance — Swift GPS transmitter uses Shearwater's multi-transmitter collision-avoidance technology for clean, reliable data across all active transmitters.
VIDEO CONSULTATIONS NOW AVAILABLE: We're bringing our highly experienced and knowledgeable staff to you with live-streaming consultations. If you need help choosing the right bit of kit or the best size before buying or even advice on whether a purchased item is the right fit for you, then book yourself a consultation appointment.
We offer free tracked UK standard delivery on orders over £50 (Excluding Weights and Cylinders, as they must go on a separate service to your order)
Standard UK delivery and Next Business Day UK delivery rates are calculated at checkout and offers a number of courier options for maximum convenience to you.
International shipping rates depend on items, shipment weight and destination. Shipping costs are calculated at checkout.
Estimated delivery times are shown during checkout and reflect your chosen delivery method. More Details
60 Day Stress Free Returns
If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!
Mike's Dive Store offer an extended returns policy of 60 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back, and we will either exchange it or offer a full refund less any postage costs. Too easy!
Please note that there are some special order items on our website that will be subject to a 20% re-stocking fee, but we will let you know about these items before we 'special order' them so that you are aware of this. If this is the case we can always help with correct sizing so that we minimise the risk of return. More Details
Returning To Chiswick Store
We want to make your shopping experience as seamless and enjoyable as possible, even when it comes to returns. That’s why we offer hassle-free returns at our Chiswick store. But there’s more—when you visit to make a return, you can also pre-order items to be available for collection. This means we’ll have a range of sizes ready for you to try on, ensuring you find the perfect fit before leaving the store.
Shop with Confidence, Wherever You Are
To make things even easier, we offer complimentary video consultations with our expert team. Whether it’s before or after your purchase, our specialists can guide you through sizing, fit, and styling—all from the comfort of your home. It’s like having your own personal VIP shopping experience, tailored just for you.
From returns to reorders, we’re here to help you find exactly what you need with zero stress.
Book Video Consultation: Book Now
We offer the option for customers to choose ‘Pickup in store’ as a shipment method, allowing your order to be picked up from our Chiswick store at a time and date that works for you (within our business hours). The process is really easy, but we'll run through it here:
Step 1 - Add products to your cart:
Browse our vast selection of diving and snorkelling equipment, adding the kit you want to your cart.
Step 2 - Head to your cart:
Click on the cart icon to see a summary of the items you are about to purchase.

Step 3 – Review Your Order and Proceed to Checkout:
Once you're satisfied with the items in your cart, you can add a note to your order under the "Order Summary" section if desired. When you're ready to proceed, simply click "Checkout" to complete your order.
Step 4 - Customer Information:
If you have a Mike's Dive Store account, simply log in to autofill your details. If not, enter your email address, select ‘Pickup in Store,’ and then click ‘Continue to Payment’ to proceed.

Step 5 – Payment & Billing Details:
Select your preferred payment method and enter your payment information. Below, provide your billing details. If you're logged into your account, please double-check that your billing and contact information are up to date.

Step 6 – Review Order:
After entering your payment details, click ‘Review Order’ to proceed with placing your order. You will receive an email confirmation with your unique order number. We will notify you when your order is ready for collection, usually within 4 hours or sooner during our opening hours (Monday to Saturday, 10 AM to 6 PM). Please note that our hours may vary during the Christmas and New Year periods.
Our London Store Information:
Address:
Mike's Dive Store, 113 Power Rd, Chiswick, West London, W4 5PY
Telephone:
Local: 01202 037162
International: 0044 1202 037162
Email:
All Enquiries - support@mikesdivestore.com
Store Opening Times:
Mon - Fri: 10am - 6pm
Sat: 10am - 5pm
Sun: Closed
Need Help?
Our expert diving team is here to assist with your order, sizing, or product selection. We're divers ourselves, ready to support you!
Chat Hours:
Monday - Friday: 09:00 AM - 05:50 PM GMT
Prefer a call back? Just request it through the chat bubble!
Store Location
Mike's Dive Store
113 Power Rd, Chiswick, West London, W4 5PY
Store Hours
Mon - Fri: 10 AM - 6 PM
Sat: 10 AM - 5 PM
Sun: Closed
Bank Holidays: Store & Warehouse Closed (no dispatch)
Online Video Consultations
Unable to visit us? Book a live video consultation for tailored advice on equipment, fitting, or specialized gear. Get expert guidance from our team, face-to-face. Book Now
For more answers, visit our FAQs.

