Your devices are already in the field. A firmware fix shouldn’t need a technician per unit — Esper Airwave gives Android device makers a managed way to ship their own firmware over the air — canary first, then staged, with delta builds and auto-rollback, and no MDM required.
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This page covers Esper Airwave — Esper’s standalone OTA firmware service for Android device makers. The rest:
Most product pages skip this. We start here — so you buy a capability, not a buzzword.
A hosted service that sends a device maker’s own firmware to units in the field, in stages, with a way back if it fails.
What consolidation actually replaces, dimension by dimension.
| Dimension | Zip files and site visits | Esper Airwave |
|---|---|---|
| How a build reaches devices | A zip on a portal, side-loaded on site | Uploaded once, released by model and cohort |
| Who gets it first | Whichever site happens to update first | A canary cohort you pick in advance |
| When a build is bad | Technicians reflash units one by one | Rollback thresholds halt the rollout |
| Download size | A full system image every time | Delta builds that carry only the changes |
| Knowing who updated | Site reports gathered in a spreadsheet | Adoption tracked for each device |
| What it is NOT | — | An MDM, a price list, or an India-hosted service |
The cheapest test is the cohort: register one model, release one build to fifty units, and see whether a rollback threshold fires when it should.
Vendors love diagrams; buyers need to know what they’re actually operating. Here’s the whole platform, demystified.
Every device model is recorded by SKU, variant and build fingerprint, so a firmware package is tied to the exact hardware it was built for and nothing else.
Your build system uploads each OTA package to Airwave as a numbered version; full images and delta builds sit side by side, ready to be released to a model.
A release goes first to a canary group, then widens in stages inside maintenance windows you set, with auto-rollback thresholds watching each step.
Adoption is tracked per device, so you see which units took a build; every action in the console can also be driven through Esper’s API from your own tools.
A model registry and versioned packages in Esper’s cloud — released canary first, in stages, with rollback thresholds.
Esper Airwave ships a device maker’s own Android firmware over the air, in stages, without needing an MDM.
SKU, variant and build fingerprint identify each hardware model, so a package built for one board never reaches another.
Packages are uploaded and versioned in one place, so the release history for each model is a list rather than a shared drive.
Delta builds carry the difference between two versions instead of a full image, which matters on metered or slow site links.
A canary cohort takes each new build before anyone else, so a fault shows up on a handful of units rather than the fleet.
After the canary, a staged rollout lets the build reach more devices step by step instead of every unit on the same night.
Maintenance windows hold installs to the hours you choose, so a till or kiosk does not restart while a customer is waiting.
Per-device adoption tracking shows where each version is installed, so a stalled unit is found without a site visit.
Auto-rollback thresholds sit on each rollout, and A/B partitions keep the previous system on the device to fall back to.
Every Airwave action is exposed through the API, so a CI job can upload a build and start its canary without a console login.
Here’s what genuinely sets it apart — and exactly where it stops.
Without a service, a device maker writes and runs its own OTA server, client logic and rollout scripts. Airwave supplies that layer as a service: a model registry, versioned packages, canary and staged releases, delta builds and maintenance windows, from one console or the API.
Esper says Airwave needs no MDM and is fully MDM-agnostic. A maker selling terminals to many businesses can keep the operating system current while each customer runs Esper Deploy, another MDM or none, without asking anyone to re-enrol a device.
A firmware fault in the field can mean a site visit per unit. Airwave puts a canary group in front of every release, watches each stage against auto-rollback thresholds, and works with A/B partitions so the previous system is still on the device if the new one has to be abandoned.
There is no public price, only a scoped quote and a 50-device test cohort. Esper lists Android 8–15 and nothing beyond it. Airwave updates firmware; it does not lock screens, push apps or wipe devices, which is Esper Deploy’s job. Packages sit in Esper’s North American cloud, with no India region.
Record each model by SKU, variant and build fingerprint, so every package you upload is tied to the right board.
Push one versioned package from your build system and name the small group of units that will always update first.
Release to Esper’s 50-device test cohort, watch adoption per device, and confirm a rollback threshold actually fires.
Widen a real build in stages inside maintenance windows, and compare delta and full-image download times on site links.
Call the API from your build pipeline so each tagged build uploads itself and starts its canary without a console login.
Modelled on Gartner Peer Insights structure. *Counts and breakdowns are illustrative pending verified review collection.
“We used to email a zip to field engineers. Now fifty test terminals take each build before the other stores see it.”
“Each of our customers runs a different MDM. Airwave updates the OS underneath without asking any of them to switch.”
“A build that misbehaved on one board variant stopped at the canary stage, and the registry showed exactly which SKU it was.”
“No price on the website meant a scoping call before budget sign-off, and we would like Android 16 on the supported list.”
Analyst firms bury this view behind paywalls, and G2 retired its Grid. So here’s TechBag’s synthesis of the OTA firmware update market — tap any vendor to see why it sits where it does.
Execution strength vs product vision — the classic market map, minus the paywall.
Quoted to scope, with a 50-device test cohort to start.
The grid nobody publishes — how far firmware delivery works without a particular MDM vs how much control you get over each release.
No MDM needed; canary, staged, delta and auto-rollback.
Positions are TechBag’s illustrative synthesis of public review-platform data and vendor documentation — not a reproduction of any analyst graphic. Verify before relying on it.
Against an in-house OTA pipeline, Memfault, Mender, 42Gears SureMDM and Scalefusion UEM — on Android coverage, price, release safety, MDM dependence, India data and exit.
| Dimension | Esper Airwave | In-house OTA pipeline | Memfault | Mender | 42Gears SureMDM | Scalefusion UEM |
|---|---|---|---|---|---|---|
| What it is | Managed Android OTA | Your own build | Device reliability cloud | Open-source Linux OTA | UEM with OEM firmware | UEM with FOTA module |
| Deployment | Esper’s cloud only | Wherever you host it | SaaS, global CDN | Hosted or self-hosted | Cloud or on-premise | Scalefusion cloud |
| Android coverage | Android 8–15 | Whatever you support | Android via Bort SDK | No Android support | Samsung and Zebra | OEM-dependent |
| Pricing model | Custom, by scope | Engineers + hosting | Monthly platform tiers | Monthly by device band | Per device, MDM licence | Per device, tiered |
| Published entry price | Not published | No licence fee | $3,495/month Growth | $34/month Basic | $3.99/device/month | $2/device/month |
| Included vs add-on | Standalone product | You build each part | OTA is optional | Deltas need Pro | E-FOTA licence extra | OEM support needed |
| Scale limits | Not published | As far as you build | 50,000 to custom | Unlimited on Enterprise | 7M+ devices overall | 10-device floor |
| Release safety | Canary + auto-rollback | A/B fallback only | Cohorts, roll forward | A/B with rollback | No downgrade | Windows and checks |
| MDM and API | No MDM, full API | Whatever you wire | SDK client or API | Proxy for Android | SureMDM enrolment | Scalefusion enrolment |
| Governance | SOC 2, ISO 27001 | Your controls | Audit logs on Enterprise | RBAC on Enterprise | OEM sets versions | File checks, reports |
| India data location | No India region | Your choice | Not published | US, EU or self-host | India region on offer | India-hosted |
| Support | Tiered, up to 24x7 | Your own on-call | Not on price page | Best effort below Ent. | India time zone | India time zone |
| Lock-in and exit | Packages are yours | Nothing to leave | Client in your image | Open source exit | Tied to the UEM | Tied to the UEM |
| Best fit | Makers of Android kit | Large in-house teams | Connected-product teams | Embedded Linux fleets | Rugged fleet owners | Managed fleet owners |
Honest fit signals — because the fastest way to lose your trust is to pretend one product wins every scenario.
TechBag has no OTA firmware update guide yet, so Esper Airwave sits outside the category guides. Browse all products to compare it with the rest of the catalogue. →
Drag the sliders (devices you ship firmware to; engineer-hour cost). Estimates model engineering and field time spent building, pushing, chasing and recovering firmware updates at an assumed 1.5 hours per device a year, with 70% of it removed by staged releases and automatic rollback. Both figures are assumptions. Illustrative.
Loaded cost = salary + overheads per productive hour. Illustrative only — your TechBag quote models your actual environment and modules.
Not published: Esper says Airwave pricing is customised to your scope, and its product page offers a 50-device test cohort as the place to start. Airwave is bought on its own — it needs no Esper Deploy subscription and no other MDM. Esper prices in US dollars with no INR list. TechBag scopes your models and fleet size first, then gets the quote in writing and bills it in INR with GST.
Best for proving a release process
Best for a broader rollout
Best for makers shipping at volume
Whatever the list prices above, TechBag negotiates a significantly better deal — with GST-compliant INR invoicing and local support. Ask us for your discounted quote.
Tell us your requirements and current tools — we’ll model it against what you spend today.
Take this into your next vendor call — including ours.
Are all your models on Android 8 to 15? Ask Esper when newer releases will be added to Airwave’s supported list.
Can every SKU and variant be told apart by its build fingerprint, so a package can never reach the wrong board?
Do your boards use A/B partitions? Without them, a failed update has nothing on the device to fall back to.
How large are full images on your slowest site links, and how much would delta builds save on each release?
Which MDMs do your customers run? Confirm Airwave sits alongside each one without a conflicting update policy.
Is North American hosting of packages and device data acceptable to you and to your Indian customers?
Which tier do you need: 9x5 with a 2-hour Sev 1 target, or Ultimate at 24x7 and 30 minutes?
Does the quote state device counts, term and what happens past the trial cohort? Ask for INR with GST.
Count the devices you ship firmware to first, or let a TechBag advisor scope a 50-device cohort with a real canary and rollback test.
Stats, ratings, review counts and pricing are illustrative and sourced from public materials; verify before purchase.