For years I've had both iPhones and Android phones to hand — not because I'm particularly flush with cash, but because it's the lot of a tech journalist to have to test and report on both these platforms regularly. It puts me in what I suspect is a small minority of people who use both Apple and Google phones just about every day.Android and iOS also mean Android Auto and Apple CarPlay, of course. It's my Google Pixel that's my main phone, and so almost all of my driving is done with Android Auto on screen. However, with a 250-mile round trip from Manchester in the north of the UK to the town of Leamington Spa in the Midlands looming, it seemed a perfect opportunity to give the Apple alternative a go — and see if there was anything I was missing.My car dashboard supports both Android Auto and Apple CarPlay, so I loaded up the Google interface for the trip down south, and the Apple equivalent for the trip back up north — and here's how it went.Down south with Android AutoThis is the interface I'm most familiar with in my car: it's simple, it's straightforward, and it gets the job done. Aside from a rather annoying bug where it always autoplays audio no matter how many times I turn off the autoplay setting, it's served me well down the years.That's largely down to Google Maps: Apple Maps has certainly improved a lot in recent times, but I find that it just doesn't have the breadth and depth of Google's offering. Apple still pulls place reviews off TripAdvisor, for example, while Google provides a host of reviews, ratings, photos, and videos from visitors. (Google Maps is on CarPlay too, but let's set that aside for the time being.)The Android Auto interface is straightforward and clean (Image credit: TechRadar)As always, Google Maps got me safely and quickly to my destination, flashing up time-saving shortcuts when the traffic started building up ahead. It works really well with the recent Gemini upgrade too: asking questions such as "how far until the next rest stop?" brings up the right answer, with the option to add it as an extra stop.One good example of Gemini's natural language intelligence is when I asked if the next turn would take me east or west along the motorway (freeway). The AI understood what I meant and answered correctly, which meant I was much better prepared for the junction, because I knew the direction I needed to be heading in.Gemini handled messages with aplomb as well, digging deep into group chats to read out all the messages I've missed, and giving me the option to reply to them without taking my eyes off the road. I tried this with both WhatsApp and Google Chat, and it worked well on almost every occasion (just once there was a failure to send a message properly).Media playback worked without a hitch (almost) (Image credit: Future)Gemini was also adept at controlling media playback, pausing and skipping and playing audio as required. I did come across one misstep, where Gemini jumped to the next podcast in the queue rather than simply resuming from where it left off. However, for the majority of the time it worked fine and exactly how you would want.It was no surprise really that Android Auto performed well, as I've been relying on it for so many years. It's not quite perfect, and I'd like to see a few more options in terms of styling and layout, but on the whole it's reliable and intuitive — with the arrival of the smarter Gemini assistant a welcome bonus.Up north with Apple CarPlay(Image credit: TechRadar)Apple CarPlay is the interface I'm less familiar with, but I do like its Liquid Glass-inspired aesthetic. I'd say it's easier on the eye than Android Auto, though maybe that's not what's most important from a car dashboard interface. I think I slightly prefer the CarPlay layout options, where you can have one, two, or three apps on the screen at once. Android Auto offers the same choice, but switches between the two-app and three-app look automatically, depending on context (if you've just got a message, for example). I prefer having the choice to set this specifically.Apple Maps has improved in recent years (Image credit: Future)As mentioned above, Apple Maps is now a perfectly polished mapping app, and got me to my destination with no problems at all. It looks great, but still isn't quite at the level of Google's alternative: I miss the color-coded 'time remaining' indicator, for example, that tells you if traffic's ahead. I was using the iOS 27 public beta for this test, complete with the new Siri AI upgrade. It's definitely a significant improvement on what we had before (thanks in part to some Google help), but it's still not quite as sharp as Gemini: it didn't understand the 'east or west' direction question, and when I asked when I would hit the next rest stop, it tried to pull up my calendar.What Siri AI did do well is give me voice control over the rest of the interface: tasks such as playing and pausing music, and skipping between tracks, were no problem at all (I tested this in Spotify, but it should work just as well in all your audio apps).I do slightly prefer the CarPlay layout (Image credit: Future)Sending and receiving messages are two other jobs that the next-gen Siri handles nicely. I was able to keep up a conversation in Messages without taking my eyes off the road, which means other people are able to get updates about where you are without you putting yourself and other road users in danger.So: no real complaints about Apple CarPlay, and I mostly liked what I saw. If I was to stick with this interface for my driving, I think I'd make use of Google Maps rather than Apple Maps, though obviously neither Android Auto nor Apple CarPlay let you change the digital AI assistant you're using.Android Auto vs Apple CarPlay: the verdictI'm still taking Android Auto (on the right) (Image credit: Future / Google)I doubt there's anyone who would switch from Android to iOS or vice versa solely because of the vehicle dashboard interface, but it might well play some part in deciding on your next phone upgrade. Even if you're not thinking of switching, you might be wondering how Apple and Google compare here.To be honest, it's an easy decision for me to stick with Android Auto. Google Maps is better than Apple Maps, and Gemini is smarter than Siri, and maps and AI access are the two most important considerations when it comes to using my phone on the go. Maybe if you have a different priority, like messaging, you might edge towards CarPlay instead.Did you know TechRadar now has membership?(Image credit: Future)Become a TechRadar Insider by simply clicking 'Join Now' at the top of this page. Have a question? Please email membership@techradar.comThat's not to say I don't like CarPlay. It looks good and it works well, and it was a little better than Android Auto on the messaging front. In fact, Siri seems to interface with the native phone apps more seamlessly than Gemini — it's just not as good at parsing what you're after or understanding what you mean, in my experience.In terms of features and app support, the two platforms are pretty similar, and I didn't have any major problems with either of them. It's really the reliability of the core maps functionality and the capability of the voice AI where Google just edges it at the moment, so Android Auto stays as my preferred interface.