Which tool to choose
Not all voice assistants do the same thing when you walk. The difference that matters is one: some search the web in real time, others answer only with what they already have "in their head".
- You need a fresh fact (hours, news, a price, what the weather's like where you're headed): use Gemini's voice mode or the assistant built into your phone. They're connected to search and read out up-to-date results.
- You want to reason, organize thoughts, get something explained: ChatGPT's advanced voice mode handles long, multi-step conversations better, the ones where one question leads to another. It should be said that, by default, it doesn't always draw on current information: if you ask "what time is it now in Tokyo" it might answer from memory, not from the web.
- You're after news and trends just out (what's being said right now about a public event): Grok is built around X's real-time stream, so it's the most suitable when you want the last-minute pulse on a current topic.
For pure search while you walk, the rule is: always choose an assistant with web access. Without it, you get plausible but potentially old answers.
How to do it
Voice interaction is almost identical across the various assistants, so the steps apply in general. Where an app behaves differently, I'll point it out.
- Connect your earbuds (even cheap wired ones are fine) or hold the phone in your hand near your mouth. Street noise is the real enemy: earbuds with a microphone filter much better than the internal mic.
- Open the assistant app and tap the voice mode icon. On almost all of them it's a sound-wave, headphone or microphone symbol next to the typing bar. If you can't find the button, type a phrase like "start voice conversation" into the text box, or check the app settings for the audio-specific option.
- Start the session and wait for the signal that the assistant is listening (a sound or an animation). Then speak naturally, the way you'd speak to a person next to you.
- Ask one question at a time. While you walk, the context distracts, and the assistant follows better if you don't pile three requests into one sentence.
- Let the answer finish before you follow up. Many apps stop if you interrupt them, which is handy for changing topic on the fly, but if you want the whole piece of information, wait for the end.
Most assistants keep working even with the screen locked and the phone in your pocket: once the conversation is started, you can put the phone away and carry on by voice alone.
A request that works well by voice, to say just as it is:
Find me the opening hours of the nearest pharmacy to where I am right now and tell me only the one open latest tonight.
A concrete example
You head out for a half-hour walk and remember you need to find out whether a hardware store is open on Sunday. You connect your earbuds, open the voice mode of an assistant with web access and say: "Is the hardware store on Via Roma in Verona open on Sunday? Tell me the hours". The assistant searches, finds the business listing and reads out: open Sunday from 9 to 1. You never even pulled the phone out of your pocket. You follow up: "And how long does it take me to walk there from where I am?". It answers with the estimated time. Three sentences, zero screen, problem solved while you walk.
When it does NOT work (and how to fix it)
If the assistant catches the wrong words
Traffic, wind or a mic far from your mouth ruin the transcription. Bring the earbuds closer, slow your speaking pace and spell out proper names. If it gets a specific name wrong (a street, a business), try dictating it letter by letter or adding the city to give it a reference.
If it answers with old information
You're using an assistant that doesn't search the web. Ask it explicitly: "Search for this information online and tell me the source". If it keeps answering "from memory", that app isn't right for live searches: switch to an assistant connected to search.
If it stops every time a car goes by
Some apps interpret loud noises as your attempt to speak and stop. Look in the voice mode settings for the option that handles interruptions and turn it off, or use the "turn-based" mode where you press to speak instead of leaving the mic always open.
A tip from someone who really uses it
Keep questions short and concrete. By voice, while your body is busy walking, the mind handles a simple request much better than an articulated line of reasoning. Save the long reflections for when you're sitting down: a walk is perfect for quick micro-searches, spoken reminders and a sharp question you want an immediate answer to.
Frequently asked questions
Does it work without earbuds too?
Yes, with the phone in your hand near your mouth. But outdoors, earbuds with a microphone make a huge difference to the quality of what the assistant understands: the internal mic picks up all the noise around you.
Does voice mode use a lot of data?
The voice conversation travels over the internet, so yes, it uses data, but much less than video streaming. For a half-hour walk with a few questions, the impact on your data plan is negligible.
Can I use it while the phone is locked in my pocket?
On most assistants, yes: you start the conversation, lock the screen and keep talking. Check in the app settings that background execution is allowed, otherwise the session closes as soon as you turn off the screen.
Do voice assistants always record and listen to what I say?
The assistant records and sends the audio only during a conversation you started yourself, not all day. It remains true that what you say is processed on the company's servers and sometimes used to improve the service: in the app settings look for the option about voice history and turn off the use of your audio for training if that concerns you. In any case, avoid dictating very sensitive data by voice in the middle of the street, where someone could overhear you.