DEPLOYDatabase

Robot model

SFx1

aerialprototypeby Smartflyer

Four-seat hybrid-electric aircraft with H55 Adagio battery system.

Track SFx1
Manufacturer
Smartflyer
Form factor
aerial
Maturity
prototype
Lifecycle
active
Website
smartflyer.ch ↗

The verified answer

As of Oct 2026, DEPLOY verifies SFx1, a aerial by Smartflyer (prototype). 2 sources back the record.

Overview

Four-seat hybrid-electric aircraft with H55 Adagio battery system. First certifiable battery modules delivered April 2026. Battery system completed all regulator-required certification tests. Hybrid propulsion for extended range vs pure battery aircraft.

Verified vs. claimed

Maturity stage
prototype(Demo-capable; limited or one-off public appearances.)
Sources on file
View all sources →

No verified deployments on file. DEPLOY tracks independently-sourced deployment evidence separately from manufacturer capability claims.

Key facts

Battery

H55 Adagio — fully certified

Type

4-seat hybrid-electric

SFX1 data box prints length 8.25 m, span 12 m, and height 3.5 m

Smartflyer's SFX1 data box prints length 8.25 m, wingspan 12 m, and height 3.5 m. The stored 4-seat hybrid-electric sentence is not this hull cell (SFX1 data).

SFX1 data box prints 120 kt cruise, 160 kW takeoff, and 400 NM range

The same box prints cruise speed 120 kt, takeoff power 160 kW, maximum continuous power 120 kW, range 400 NM, endurance 4 hours, empty weight 1000 kg, and takeoff weight 1400 kg. Those cells are not the stored H55 battery sentence (SFX1 data).

Specs

Battery

H55 Adagio — certifiable, all regulator tests passed

Capacity

4 seats

Milestone

First battery modules delivered April 2026

Propulsion

Hybrid-electric

Data & sources

Web sources

2

2 sources backing this record.View all →

Pricing

No verified price is on record for SFx1. Physical-AI systems are often sold through enterprise contracts or operated as a service rather than at a public list price.

How DEPLOY tracks pricing

Recent activity

Every change to this record is dated, sourced, and independently verified where marked.

Full change history →

Safety record

No incidents on record for SFx1.

Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.

Sources (2)

  1. https://evtolinsights.com/h55-delivers-first-certifiable-battery-modules-for-smartflyers-sfx1-electric-aircraft/
  2. https://www.smartflyer.ch/downloads/CP12_23-25_Smartflyer_korr.pdf

Common questions

What is SFx1?
Four-seat hybrid-electric aircraft with H55 Adagio battery system. First certifiable battery modules delivered April 2026. Battery system completed all regulator-required certification tests. Hybrid propulsion for extended range vs pure battery aircraft.
How much does SFx1 cost?
SFx1's price is not publicly disclosed. DEPLOY has no verified price on record for SFx1 from Smartflyer. Physical-AI systems like this are often sold through enterprise contracts or operated as a service rather than at a public list price; check the manufacturer for the latest.
Is SFx1 actually deployed in the real world?
SFx1 is at the prototype stage: it exists, but DEPLOY has no verified real-world deployment on record. Manufacturer capability claims should be read as claims pending independent verification.
Who makes SFx1?
SFx1 is made by Smartflyer, based in Sarnen, Switzerland.
Can you buy SFx1?
SFx1 is at prototype stage and is not yet available for sale.
What are alternatives to SFx1?
On the DEPLOY registry, comparable aerial robots to SFx1 include Wing Delivery Aircraft, Skydio X10, Zipline Platform 2 (P2), Prime Air MK30.
How does SFx1 compare to Wing Delivery Aircraft?
SFx1 and Wing Delivery Aircraft (Wing · 35 deployments) are both aerial robots on the DEPLOY registry. SFx1 has 0 verified deployments on record. Compare both records for specs, safety, deployments, and verified-vs-claimed autonomy.
Is SFx1 a top aerial?
On DEPLOY's intelligence score, which blends verified deployments, safety, adoption, media, and IP signals, SFx1 ranks in roughly the top 84% of aerial models tracked by the registry.
What is SFx1's maturity stage?
SFx1 is at the prototype stage on the DEPLOY maturity ladder (research, prototype, pilot, commercial, production). Prototype stage means demonstrations exist but commercial readiness is not yet established.
Where is SFx1 deployed?
No verified deployments of SFx1 are currently on the DEPLOY registry. DEPLOY records deployments only when verified at a named site with a primary source; absence may reflect pre-deployment, research, or manufacturer-internal use.
Is SFx1 safe?
SFx1 has no incidents on record in the DEPLOY registry. This does not constitute a safety guarantee; it reflects the incidents DEPLOY has tracked and verified to date.
Methodology: Verified · 2 sources (no primary) · last reviewed 2026-10-04

Verification posture

Verified

Low confidence

Review state

Stable

Last reviewed 2026-10-04

Maturity + lifecycle

Maturity stage: prototype

Lifecycle: active

Architectural position

Cohort: aerial

Sources by quality tier

2
unclassified
Unclassified source

The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.

Methodology surface for SFx1.