Residential vs mobile proxies for legitimate browser agents
i run browser agents from Singapore, and the question of which IP they leave from comes up more often than the question of which model they use. An agent that logs into a dashboard you own, checks a localized page for a client, or runs a task for a consenting user still has to leave from somewhere. The default is a datacenter IP. Sometimes that is fine. Sometimes the site you are testing treats datacenter ranges differently from home or phone traffic, and you need something else.
Residential proxies route your requests through IP addresses that an ISP assigned to a household. Mobile proxies route them through addresses assigned by a mobile carrier, usually from a real modem or phone on a cellular network. Both look like ordinary user traffic. They differ in how that traffic is shared, how long an address stays yours, where you can get it, and what you pay.
my verdicts, short version. Residential wins for broad geo coverage and for cost on high-volume, short-lived fetching. Mobile wins when one agent needs one stable identity for a long session on a site that is cautious about unfamiliar IPs, and you only need the countries a mobile supplier actually covers. For most small operators it depends on the job, and I think picking one product for everything is the usual mistake. This article is for legitimate work only: your own properties, consenting users, and sites whose terms allow what the agent is doing. It does not cover getting around bans or CAPTCHAs, and I will not give that guidance.
TL;DR comparison table
| axis | Residential proxies | Mobile proxies |
|---|---|---|
| IP source | home ISP connections, often a peer pool | carrier IPs from real modems or phones |
| Pricing model (as of October 2026) | usually per GB of traffic, tiers by volume | usually per port, per day or per month, often with bandwidth caps |
| Pricing level | cheaper per IP, costs climb with page weight | more expensive per IP, flat when you stay inside the cap |
| IP reputation | generally good, varies by pool and neighbor abuse | generally good, shared carrier addresses make sites cautious about blanket blocks |
| Session stability | sticky sessions exist but peers can drop offline | stable while the modem or phone stays connected, rotation on a timer or on demand |
| Geo coverage | very wide, city and ASN targeting at many vendors | narrower, a limited list of countries and carriers |
| Support | vendor dashboards, docs, ticket queues, large vendors have 24/7 chat | smaller suppliers, often direct chat with the operator |
| Typical user | scrapers of public data, geo QA teams, large agent fleets | agents that hold a login for hours, social and app testing, small teams needing one clean identity |
Residential proxies at a glance
a residential proxy network is a pool of addresses on consumer broadband connections. You connect to a gateway hostname, authenticate, and the vendor picks an exit from the pool based on the country, city or ISP you asked for. Most vendors offer rotating sessions (new IP per request or per connection) and sticky sessions (the same IP held for a window you set).
where do the IPs come from? This is the part operators should ask about. Some pools are built from users who knowingly opted in to share bandwidth, often in exchange for a free app or a payment. Others come from SDKs bundled into apps where the consent is thinner. As an operator I care about this for two reasons. It is an ethics question, and it is a reliability question, because a pool built on a shaky source can vanish when an app is delisted. I ask any vendor how they source peers and whether they publish a policy. If the answer is vague, I move on.
pricing is typically metered by traffic. That model is friendly to light agent runs and unfriendly to anything that downloads heavy pages, because a modern page with images, scripts and video previews can be several megabytes. A browser agent loads the full page, not just the HTML. Block images and media in your agent’s context where the task allows it, and your bill drops without any other change. Playwright supports per-context proxy configuration and request routing, documented in the Playwright network guide.
what residential does badly: sticky sessions are a promise about the gateway, not about the household. The home router can reboot, the peer app can close, and your session ends mid-task. Quality is also uneven. A pool is shared with every other customer of the vendor, so a neighbor’s abusive traffic can lower the standing of an address you then inherit.
Mobile proxies at a glance
a mobile proxy exits through a cellular connection. In the good version of this product, there is a real 4G or 5G modem or phone with a SIM card, and your traffic goes out through its data connection. The IP belongs to the carrier’s address space.
the thing that makes mobile addresses behave differently is carrier-grade NAT. Carriers do not have enough IPv4 addresses for every subscriber, so many phones share a small set of public addresses. The IETF reserved a shared address block for this in RFC 6598. The practical effect for you: a site that blocks a mobile address risks blocking a lot of real customers at once, so sites tend to be more tolerant of mobile IPs than of datacenter ones. The same sharing cuts the other way. You share that address with strangers, and what they do on it is outside your control.
rotation is the other trait. Mobile IPs change when the modem reconnects, either on a timer you set or when you call a rotate endpoint. For an agent that needs one identity across a session, you want the opposite, a sticky session that stays put. That is why the product to look for is a stable port tied to a single device. I wrote a step by step in how to route a Playwright agent through a mobile proxy, covering the proxy settings, authentication and what to check before you trust the exit.
what mobile does badly: it costs more per IP, bandwidth is often capped per port, and you are limited to the countries where a supplier has real devices.
one note on location. If your agent needs a Singapore exit, Singapore Mobile Proxy sells real Singapore mobile IPs with sticky sessions. It is Singapore only, so it is no help if your target audience sits anywhere else. I run it, so weigh that accordingly. For every other country, you need a different supplier, and I will say plainly that coverage outside a few markets is thin across the whole mobile proxy industry.
Head-to-head
IP reputation
reputation is what the target site thinks of the address before your agent says a word. It depends on three things: what kind of network the address belongs to, what has recently come out of it, and how many people share it.
residential addresses carry a good baseline because they belong to consumer ISPs. The weak point is the pool. If a vendor sells the same peers to thousands of customers, any one of them can degrade an address for the rest. You usually cannot see this from the dashboard. You find out when a task that worked yesterday starts returning challenge pages today.
mobile addresses carry a different baseline, for the CGNAT reason above. Sites hesitate to hard block them. But I would not oversell this. Some services do apply stricter checks to certain mobile ranges, and anything that looks like automated abuse can get a carrier address rate limited like any other.
a point that matters more than which proxy type you pick: behavior. An agent that hammers a login form, ignores rate limits or scrapes against a site’s rules will get blocked from any IP, and I do not think swapping the exit solves that. Read the target’s terms. For crawling public pages, read its robots.txt, which is standardized in RFC 9309. If a site says no automated access, the right answer is to not send the agent there.
verdict on reputation: a narrow edge to mobile for cautious sites and logged in sessions, a tie for most public page work. Quality varies by vendor more than by type.
Session stability
this is where the two products differ most for agents, because agents are long running and stateful. A human browses for minutes. A computer use agent might hold a session for hours while it works through a queue.
mobile wins here when you buy a dedicated port or device. The IP stays the same until you rotate it or the modem reconnects, so the site sees one visitor from one place. That pairs well with persisted state. If you keep cookies and storage between runs, as in how to persist browser sessions for AI agents, a consistent IP means the saved session is less likely to look like it teleported. Many services notice a session cookie suddenly arriving from a different network and ask for a fresh login or an extra verification step. Keeping the egress steady avoids creating that situation for your own accounts.
residential sticky sessions work, but you are renting a slice of someone’s home connection. Vendors document sticky windows ranging from minutes to a couple of hours, and the exact limits vary by vendor and plan, so check the current docs before you design around one. Within the window, a peer going offline will drop you onto a new IP with no warning. Your agent code needs to expect that: retry logic, re-checking the page state after any connection error, and no assumption that cookies remain valid.
verdict on stability: mobile, clearly, for long single identity sessions. Residential is fine if your agent works in short, restartable tasks.
Geo coverage
here residential wins by a wide margin. Large residential vendors advertise exits in a very large number of countries, with targeting by country, region, city or ISP on many plans. If you test localized pricing, ad rendering, cookie banners or content availability across markets, this is what you want, and I would not try to do it with mobile.
mobile coverage is thin by comparison. A supplier needs real SIMs and real modems in each country, so you will find a handful of countries well served and long stretches of the map with nothing. Check the specific carrier too. A mobile proxy on one carrier does not look the same as another carrier’s, and a site that serves a regional audience may expect specific networks.
for work that has to stay in one place, narrow is fine. If your agent runs against Singapore services, which is a lot of my own work, a Singapore mobile IP is closer to what a local user presents than a residential address from a random pool. cloudf.one takes a different approach to the same problem: it rents real Android phones in Singapore on dedicated hardware, each with a persistent Singapore mobile IP, controlled from the browser. That fits phone use agents that need a real device and a mobile network together, and it is Singapore only. For that kind of agent, Play Integrity explained for phone use agents covers what the device layer checks, which has nothing to do with the IP.
verdict on geo: residential, easily, unless your target is a market where a mobile supplier has real devices.
Cost
prices change often, so treat this as the structure of the cost, not a quote, and check vendor pricing pages yourself (as of October 2026 I am not putting numbers in this article because they move too much to print).
residential is usually billed per GB. That makes it cheap to start and easy to scale down, and it gets expensive for agents that load heavy pages. A browser agent downloads far more than a plain HTTP client. If your agent screenshots pages, loads video previews or runs through ad heavy sites, the traffic adds up quickly. Reduce it: block images and media when the task does not need them, reuse a single browser context instead of reloading assets, and cache what you can. Measure the bytes your agent pulls per task before you commit to a plan.
mobile is usually billed per port or per time period, often with a bandwidth cap or a fair use policy. The per IP price is higher, but the cost is predictable if your usage sits inside the cap. For a single long lived agent identity, a flat monthly port is often cheaper than paying per GB for a residential sticky session at the same volume. For a fleet that needs thousands of distinct IPs, mobile is a poor fit and residential is the only practical option.
hidden costs worth counting: engineering time spent on retries after dropped sticky sessions (residential), the cost of one more vendor relationship (both), and idle ports you pay for while the agent is not running (mobile).
verdict on cost: residential for volume and for light pages, mobile for a small number of long lived identities with predictable usage.
Support and tooling
large residential vendors usually have dashboards, usage reports, docs for common automation frameworks and ticket or chat support at all hours. Smaller mobile suppliers often offer direct contact with the person running the hardware. Ask each vendor for their response time before you rely on them, and test it with a real question on a trial plan.
on tooling: both types give you a standard HTTP or SOCKS5 endpoint with username and password, so Playwright, Puppeteer and any other framework work the same. If you are choosing between those frameworks, Playwright vs Puppeteer for AI browser agents covers the proxy handling differences. If a proxy breaks installation steps, as with TLS interception, the Playwright SSL certificate error behind a proxy write ups on the blog index are the place to start.
Use-case verdicts
Localized QA across many countries
winner: residential proxies. You need many locations, short sessions and low cost per check. Mobile coverage cannot match it, and session length hardly matters for a page load and a screenshot.
One agent holding a logged in session for hours
winner: mobile proxies. A stable IP tied to a dedicated device keeps the session consistent, which suits agents working inside your own accounts or accounts a user has authorized. Pair it with saved browser state and expect to rotate only on purpose.
Public page monitoring at volume, within site terms
winner: residential proxies. Check robots.txt and the terms, rate limit your agent, and meter your bandwidth. Per GB billing suits many small fetches, and you do not need a persistent identity.
Testing an app or site as a mobile user in one country
winner: mobile proxies, if the country is covered. If your audience is in Singapore, a real Singapore mobile IP is the closest thing to what those users present. Outside the countries a mobile supplier covers, fall back to residential and accept the difference.
Who should pick residential proxies
- teams that need exits in many countries or cities
- operators running large fleets of short, restartable agent tasks
- anyone billing by traffic who can keep page weight low
- developers who want large vendor docs, dashboards and round the clock support
- projects where a dropped sticky session costs nothing but a retry
Who should pick mobile proxies
- operators running a few agents that each keep one identity for hours
- teams working inside accounts they own or a user has authorized, where session consistency matters
- anyone testing as a mobile user in a country a supplier covers
- small teams who prefer a flat monthly cost and direct contact with the supplier
- phone use agent builders who need a real device and a carrier network together
Verdict overall
if you want one answer, I do not have it. Residential is the better default: wider coverage, lower entry cost, mature tooling. Mobile earns its higher price when session stability is the problem you are actually having, and when your target country is one a supplier covers with real hardware.
my own setup is both. Short geo checks go through residential. Long lived agent sessions that need a steady Singapore identity go through a mobile port. Before you buy either, measure your agent’s bytes per task, decide how long a session must live, and write down which countries you need. Those three numbers settle most of the decision. Also keep your agent inside the rules of each site it visits. A better IP will not fix an agent that should not be there.
if your agent also reads untrusted pages, the IP is the least of your risks, and prompt injection for browser agents explained is worth reading before you scale up. More operator notes live on the blog index.
this is not legal or tax advice. Check each target site’s terms and your local rules before running automated traffic through any proxy.
Written by Xavier Fok
disclosure: this article may contain affiliate links. if you buy through them we may earn a commission at no extra cost to you. verdicts are independent of payouts. last reviewed by Xavier Fok on 2026-10-03.