DJI Osmo Action 2 vs Ricoh Theta X
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Overview of the DJI Osmo Action 2

DJI's wearable action camera: 4K video in a modular format
The DJI Osmo Action 2 is an extremely modular action camera which delivers incredible 4K120fps footage while still remaining wearable. Thanks to it's magnetic attachement system, you can mix and match modules to transform it to suit every use case you can imagine. It's successor, the DJI Osmo Action 3, has abandonned this modular design, so the Action 2 remains DJI's current wearable camera.
- Pros
- 4K120fps footage
- Wearable
- Lightweight
- Cons
- SD card only with extra module
- Modules are not waterproof without case
- Not freeze-proof
- Overheating issues
Overview of the Ricoh Theta X
Comparison of the Action 2 vs the Theta X
Quick links:
Video performance
Neither camera offers HDR video. Only the Action 2 features slow motion video. Only the Action 2 has image stabilization.
DJI Osmo Action 2
Ricoh Theta X
Feature missing
Max 360° resolution
5.7K 360 video at 30fps
4K video at 120fps
Max resolution
4K video at 60fps
HDR video unsupported
HDR video
HDR video unsupported
4x at 1080p
Maximum slow motion
No slow motion video
RockSteady 2.0
Stabilization
No image stabilization
Why it matters:
A high resolution will give you crisp footage but also allow you to reframe your video without losing too much quality. A higher framerate (fps) will result in smoother video and is important when filming action scenes or fast moving subjects. Image stabilization is a crucial feature for an action camera, as it removes camera shake, vibrations, rotation and other movements that deteriorate your final footage.
Battery life
The Theta X offers a much larger battery capacity. Neither camera has a removable battery.
DJI Osmo Action 2
Ricoh Theta X
580mAh
Battery capacity
1350mAh
Removable
Removable battery
Non removable
70min at 1080p
Battery life
30min 5.7K30fps 360° and 55min 4K30fps 360°
1300mAh
Battery extension capacity
Feature missing
160m at 1080p
Battery extension run time
Feature missing
Why battery life matters:
Nothing worse than running out of battery just before capturing the best footage of the day! A long battery life is reassuring and convenient when shooting footage outdoors where options to charge are limited. Even the use of a power bank can be tedious or simply impossible like when filming watersports. Having removable batteries allows battery swapping on the go which further extends your runtime.
Storage
Both cameras have built-in storage. Both the Action 2 and the Theta X support SD cards.
DJI Osmo Action 2
Ricoh Theta X
32GB or 128GB
Built-in storage
46GB
microSD
Storage format
microSDXC
256GB
Maximun storage supported
Feature missing
Why storage matters:
High quality footage can quickly take up lots of space and insufficient storage can soon be frustrating. Having a large amount of storage and the possiblity to extend it or swap SD cards while on a outing will ensure you will always be able to capture the footage you want. However, smaller, wearable action cameras often rely on built-in storage because of their small size.
Weight and size
The Action 2 is a lot more compact than the Theta X. The Action 2 is a lot lighter than the Theta X.
DJI Osmo Action 2
Ricoh Theta X
1.54in x 1.54in x 0.88in / 39mm x 39mm x 22.3mm
Dimensions
2.04in x 5.36in x 1.14in / 51.7mm x 136.2mm x 29mm
1.98oz / 56g
Weight
6oz / 170g
Why size and weight matter:
Weight is important for action cameras because we often mount them on helmets, or hold them at the end of a selfie stick while moving. Therefore a heavier camera can be difficult or uncomfortable to film with. Weight is even more crucial for certain sports like road cycling or running.
Waterproofing and usage conditions
The Action 2 is a lot more waterproof when using a diving case. Both cameras have the same maximum usage temperature.
DJI Osmo Action 2
Ricoh Theta X
33ft / 10m
Waterproof
Feature missing
197ft / 60m
Waterproof with diving case
131ft / 40m
32°F / 0°C
Min operating temperature
32°F / 0°C
104°F / 40°C
Max operating temperature
104°F / 40°C
Why it matters:
Most action cameras are waterproof for accidental splashing or use above water, but if you plan on Snorkeling or Scuba Diving, we recommend choosing a camera which offers a diving case and always using it for underwater footage. If you plan on filming Snowboarding, Skiing or other wintersports in extremely cold conditions, you should pick a camera that is rated for those temperatures, most cameras are only rated down to 14°F / -10°C. Many action cameras are prone to overheating, even in ordinary conditions, so if you plan on filming in hot environments, you should choose a camera that can function at high temperatures.
Camera and sensor technology
The Theta X features a much higher resolution. The Action 2 has a slightly better video bit rate than the Theta X.
DJI Osmo Action 2
Ricoh Theta X
12MP
Pixels
60MP
155°
Field of view
Feature missing
130Mbps
Video bite rate
120Mbps
Why it matters:
A higher amount of pixels will offer better quality footage and higher resolution photos. A higher field of view means that the camera captures over a wider angle and therefore more action can be seen in the final footage. Some cameras require accessories to enable the maximum FOV. A higher bitrate at a similar resolution will offer higher quality video.
Camera settings
The Action 2's 100-6400 ISO range is far superior to Theta X's. The Action 2's +/-4 exposure compensation is far superior.
DJI Osmo Action 2
Ricoh Theta X
100-6400
ISO range
50-3200
+/-4
Exposure Compensation
+/-2
Why these settings matter:
The ISO range and exposure compensation settings will mostly allow you to tweak your action camera for low light situations.
DJI Osmo Action 2 versus Ricoh Theta X specifications
Name | DJI Osmo Action 2 | Ricoh Theta X |
Year of release | 2021 | 2022 |
Width | 1.54in / 39mm | 2.04in / 51.7mm |
Height | 1.54in / 39mm | 5.36in / 136.2mm |
Depth | 0.88in / 22.3mm | 1.14in / 29mm |
Weight | 1.98oz / 56g | 6oz / 170g |
Waterproof | 33ft / 10m | - |
Waterproof with diving case | 197ft / 60m | 131ft / 40m |
Min operating temperature | 32°F / 0°C | 32°F / 0°C |
Max operating temperature | 104°F / 40°C | 104°F / 40°C |
Battery capacity | 580mAh | 1350mAh |
Removable battery | No | - |
Battery life | 70min at 1080p | 30min 5.7K30fps 360° 55min 4K30fps 360° |
Battery extension capacity | 1300mAh | - |
Battery extension run time | 160m at 1080p | - |
Battery extension charging time | 90min | - |
Battery extension weight | 2.26oz / 64g | - |
Built-in storage | 32GB 128GB | 46GB |
Storage format | microSD | microSDXC |
Storage rating required | V30 or UHS-3 | V30 |
Maximun storage supported | 256GB | - |
Rear screen size | - | 2.25in |
Field of view | 155° | - |
Sensor | 1/1.7" | 1/1.7" BSI-COMS |
Pixels | 12MP | 60MP |
Aperture | F2.8 | F2.4 |
ISO range | 100-6400 | 50-3200 |
Color Depth | 8bit | 8bit |
Video bite rate | 130Mbps | 120Mbps |
Exposure Compensation | +/-4 | +/-2 |
360-degree video | No | Yes |
5.7K 360 video | - | 30fps |
4K 360 video | - | 60fps |
4K video | 120fps | 60fps |
2.7K video | 120fps | 100fps |
1080p video | 240fps | - |
Slow motion at 4K | 4 | - |
Maximum slow motion | 4x at 1080p | - |
Stabilization | RockSteady 2.0 | - |
Horizon lock | - | Yes |
Video format | H.264 (MP4) | H.264 (MP4) |
Live streaming | No | - |
Webcam mode | - | Yes |
Timelapse mode | Yes | Yes |
Starlapse mode | Yes | - |
Timeshift mode | Yes | Yes |
Loop recording mode | Yes | Yes |
Subject tracking | No | - |
Photo burst mode | No | - |
RAW format supported | Yes | Yes |
Microphones | 1 (3 with Module) | 1 |
Stereo audio | Yes | No |
Noise reduction | Yes | Yes |
Audio format | aac | aac |
Wifi | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac |
Bluetooth | BLE 5.0 | BLE 5.0 |
USB | Type-C USB | Type-C USB |
GPS integrated | No | Yes |
Voice commands | Yes | - |