OOH vs DOOH advertising
OOH is everything you see outside the home; DOOH is the digital, screen-based, programmatic subset of it. Static OOH (billboards, wraps, printed taxi tops) buys the cheapest impressions and runs always-on. DOOH (digital billboards, screens, digital cartops) costs more per thousand but adds dayparting, geo-targeting, dynamic creative and real measurement. In taxi advertising the two live on the same cars: a wrap or static top is OOH, a digital LED cartop is DOOH.
Side by side
| OOH (static) | DOOH (digital) | |
|---|---|---|
| What it is | Printed billboards, transit, taxi wraps & static tops, posters | Digital screens: digital billboards, mall/transit screens, digital cartops |
| Creative | One fixed message per flight | Rotating, dynamic, data-driven (weather, time, live feeds) |
| Buying | Direct / by flight (weeks or months) | Programmatic — open exchange or PMP, launch in minutes/hours |
| Targeting | Location only | Location + time + audience + triggers |
| CPM | Lowest | Higher (you pay for flexibility) |
| Measurement | Modeled impressions (Geopath) | Mobile-location attribution + retargeting (store visits, re-serve) |
| Flexibility | Low — locked for the flight | High — change or pause anytime |
| Best for | Cheap, broad, always-on reach | Timing, relevance, direct response, provable ROI |
| Taxi equivalent | Wrap · static top | Digital cartop / Taxi TV |
The honest trade-off (with numbers)
DOOH is the fastest-growing OOH segment because it fixes OOH’s two historic weaknesses: you couldn’t change the ad, and you couldn’t prove it worked. Digital screens fix both — but you pay for it.
- Cost: static wrap/top CPMs run roughly $2.50–$10; digital cartops and DOOH run higher and vary by daypart. NYC DOOH spans about $7 programmatic to $75+ in premium spots.
- Recall: a Nielsen study of digital cartops found +42% brand awareness and +30% ad recall vs control — the kind of lift static media rarely proves.
- Attribution: DOOH ties exposure to outcomes (store visits, re-served mobile ads). Static OOH gives you modeled impressions and not much else.
- The catch: an impression is still not a memory — only a small share convert to recall. A cheap static buy with a strong, simple creative can beat an expensive digital one that’s poorly targeted. Compare cost-per-memory, not CPM.
OOH: pros & cons
Pros
- Lowest CPM — cheapest impressions
- Always-on for the whole flight
- Big, simple, unmissable canvas
- No ad-block, no skip
Cons
- One fixed message
- Location-only targeting
- Weak, modeled measurement
- Locked in for the flight
DOOH: pros & cons
Pros
- Dynamic, dayparted, triggered creative
- Geo + audience + time targeting
- Attribution & retargeting
- Buy/pause programmatically in minutes
Cons
- Higher CPM
- Screen inventory finite in some markets
- Needs programmatic know-how
- Shares screen time with other advertisers
OOH vs DOOH: FAQ
What’s the difference between OOH and DOOH?
OOH (out-of-home) is any advertising you see outside the home — billboards, transit, taxi wraps, static taxi tops, posters. DOOH (digital out-of-home) is the digital subset: screens you can change remotely and buy programmatically — digital billboards, mall and transit screens, and digital taxi/cartops. All DOOH is OOH; not all OOH is DOOH.
Is DOOH more expensive than OOH?
Per impression, usually yes. Static OOH (a printed billboard or taxi wrap) has the lowest CPM because one print runs for weeks. DOOH costs more per thousand because you’re buying flexibility — dayparting, geo-targeting, dynamic creative and measurement. The question isn’t which is cheaper, it’s which delivers a lower cost-per-outcome for your goal.
Can you target and measure OOH?
Static OOH targets by location only and measures with modeled impressions (Geopath). DOOH targets by time, weather, audience and location, and measures with mobile-location attribution and retargeting — you can tie an exposure to a store visit or a re-served mobile ad. That measurement gap is the main reason brands pay the DOOH premium.
Where do taxi ads fit — OOH or DOOH?
Both. A taxi wrap or a static taxi top is classic (moving) OOH — cheap, broad, always-on. A digital cartop (Firefly, Uber OOH, Curb) is DOOH — dynamic, dayparted, geo-targeted, measurable, at a higher CPM. Taxi advertising lets you buy either, on the same moving inventory.
Should I buy OOH or DOOH?
Buy static OOH for cheap, wide, always-on awareness and long flights. Buy DOOH when timing, targeting, dynamic creative or hard measurement matter — a lunch offer near your stores at noon, a weather-triggered message, or a campaign you must prove worked. Many brands run both: static for reach, digital for relevance.
Apply it to taxis: compare companies · cost guide · who sells what · does it work?
Sources: recall +42%/+30% — Nielsen via OAAA (DOOH effectiveness); CPM ranges — DASH TWO pricing & NYC DOOH benchmarks (AdQuick); impression→memory funnel — Digital Signage Today; measurement methodology — Geopath.
Independent, unpaid guide by an out-of-home-experienced editorial team. Figures are industry ranges and change; verify with your vendor. Updated 2026-08-07.