DJI Osmo Action 2 vs Ricoh Theta X
VS
    Overview of the DJI Osmo Action 2
 DJI Osmo Action 2
DJI Osmo Action 2DJI's modular action camera with 4K video
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.            
                Alternatives to the DJI Osmo Action 2
 SJCam C110 PlusA pocket camera for an affordable price
SJCam C110 PlusA pocket camera for an affordable price Sixmou i3A thumb sized, budget action camera
Sixmou i3A thumb sized, budget action camera Insta360 Go UltraInsta360's latest wearable camera, now with 4K60fps video
Insta360 Go UltraInsta360's latest wearable camera, now with 4K60fps video DJI Osmo NanoDJI's latest wearable action camera
DJI Osmo NanoDJI's latest wearable action cameraAlternatives to the Ricoh Theta X
 Kandao Qoocam 3 UltraKandao's latest 360 camera: 8K video and integrated GPS
Kandao Qoocam 3 UltraKandao's latest 360 camera: 8K video and integrated GPS DJI Osmo 360DJI's first 360 camera
DJI Osmo 360DJI's first 360 cameraDJI 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 | - | 
