---
url: "https://onebag.travel/compare/9uzpl3evsy/stm-haven/g73g0lm6am/heimplanet-motion-arc-20/"
title: "STM Haven vs HEIMPLANET Motion Arc 20 - One Bag Travel"
description: "STM Haven vs HEIMPLANET Motion Arc 20: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/9uzpl3evsy/stm-haven/g73g0lm6am/heimplanet-motion-arc-20/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  STM Haven vs. HEIMPLANET Motion Arc 20

# STM Haven vs. HEIMPLANET Motion Arc 20

Two carry-on travel backpacks, compared spec for spec.

## [STM Haven](https://onebag.travel/carryon/9uzpl3evsy/stm-haven/)

by [Stm](https://onebag.travel/carryons/?brands=Stm)

![Front facing view of the STM Haven](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601598213/carryons/haven-moroccan-blue-front-angle_v4wuxs.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>20 L</td></tr><tr><td>Weight</td><td>0.9 kg</td></tr><tr><td>Dimensions</td><td>47×28×13 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$100</td></tr></tbody></table>

## Feature by feature

| STM Haven | Feature | HEIMPLANET Motion Arc 20 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 4 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| N | Sternum Strap | removable |
| Inside |
| 15in | Laptop | 15in |
| 5 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>Polyester</td><td>210 D Ripstop Nylon Melange with PEVR lamination</td></tr></tbody></table>

## [HEIMPLANET Motion Arc 20](https://onebag.travel/carryon/g73g0lm6am/heimplanet-motion-arc-20/)

by [HEIMPLANET](https://onebag.travel/carryons/?brands=HEIMPLANET)

![Front facing view of the HEIMPLANET Motion Arc 20](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1625723446/carryons/HEIMPLANET_Motion_Arc_20_xicwa8.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>20 L</td></tr><tr><td>Weight</td><td>0.74 kg</td></tr><tr><td>Dimensions</td><td>52×32×22 cm</td></tr><tr><td>Airline fit</td><td>70%</td></tr><tr><td>Price</td><td>$169</td></tr></tbody></table>

## Key differences between the STM Haven and HEIMPLANET Motion Arc 20

-   **Sternum strap:** No on the STM Haven; Removable on the HEIMPLANET Motion Arc 20.
-   **Main compartments:** 5 on the STM Haven; 1 on the HEIMPLANET Motion Arc 20.
-   **Water bottle pockets:** No on the STM Haven; 1 on the HEIMPLANET Motion Arc 20.

Both have: backpack straps, laptop sleeve, built-in organizer, water resistant.

## Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 133 accept both. 43 accept only the STM Haven, and 0 accept only the HEIMPLANET Motion Arc 20.

### Only the STM Haven fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Great Lakes Airlines, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, Xiamen.

## STM Haven vs. HEIMPLANET Motion Arc 20: which should you pack?

The **STM Haven** carries the same capacity as the **HEIMPLANET Motion Arc 20** (20L vs. 20L), while the **HEIMPLANET Motion Arc 20** is the lighter pack at 0.74kg (vs. 0.9kg). For carry-on flexibility, the **STM Haven** fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the STM Haven; if you want to travel lighter, the HEIMPLANET Motion Arc 20 is the better call.