Main trade-off
OM SYSTEM OM-5 body
Micro USB charging needs power off. The checked seller is True Modern Electronics and US warranty coverage is unverified.
Head-to-head
OM SYSTEM OM-5 vs OM-5 Mark II: Mark II simplifies charging, the original keeps an existing ECG-5 grip
The short answer
Mark II adds USB-C supply while the original retains ECG-5 grip compatibility. Choose Mark II when reducing battery drain from a USB source during shooting solves a real travel problem. Keep or consider the original when the existing ECG-5 grip matters and its charging breaks are acceptable. Both offers are body-only. The original New offer is from True Modern Electronics, with seller authorization and US warranty unverified. Mark II still stops when its internal battery empties.
Before you choose
The reasoning and the trade-offs
USB-C removes a cable annoyance, not the need to plan battery breaks
For a family trip, Mark II can share a suitable USB-C supply with the rest of the bag and reduce drain while you photograph or film. The original requires power off for its USB charging routine. However, Mark II still uses its internal battery alongside the external source and stops when that battery empties. Plug the bank in while the battery is healthy, then turn the camera fully off during a break if you want it to charge. Buying a more powerful bank does not change this limit. A charged spare can be more useful than another cable during an unrepeatable school performance.
What this is based on
Manufacturer power FAQ distinguishes supply, charging, sleep and shutdown. No predicted runtime or guaranteed continuous event coverage.
Main trade-off
OM SYSTEM OM-5 Mark II body
USB supply is not USB PD operation and cannot keep shooting after the internal battery empties. ECG-5 does not transfer.
OM SYSTEM OM-5 body
- Choose it for
- You already use an ECG-5 grip and want to retain that fit. Confirm this third-party seller, returns and US warranty before buying.
- A meaningfully lower total price would leave room for the lens you need, and power-off charging fits your routine.
- Main trade-off
- Micro USB charging needs power off. The checked seller is True Modern Electronics and US warranty coverage is unverified.
OM SYSTEM OM-5 Mark II body
- Choose it for
- A USB-C source connected early in the session would reduce battery drain, with charged BLS-50 spares still available.
- You want the revised built-in grip and menus, without depending on an ECG-5 accessory.
- Main trade-off
- USB supply is not USB PD operation and cannot keep shooting after the internal battery empties. ECG-5 does not transfer.
About this comparison
OM-5 vs OM-5 Mark II for travel, existing lenses and power banks. See what USB-C actually changes, which accessories transfer and why 50MP is conditional.
These are consecutive versions of the same small outdoor camera, with the same lens system, battery and nominal still resolution. The question is whether connection and handling changes justify replacing a working setup.
Winner by situation
Start with what you need it to do
Retain an existing ECG-5 grip
The original supports that accessory. Check seller and warranty if buying another body.
- OM SYSTEM OM-5 body
- Better fit
- OM SYSTEM OM-5 Mark II body
- Not suitable
Reduce battery drain from USB while shooting
Mark II accepts supply, but stops when its internal battery empties.
- OM SYSTEM OM-5 body
- Not suitable
- OM SYSTEM OM-5 Mark II body
- Better fit
Reuse charged BLS-50 batteries
Both use the same battery family.
- OM SYSTEM OM-5 body
- Good
- OM SYSTEM OM-5 Mark II body
- Good
Get a single-exposure 50MP picture of a running child
The 50MP option combines exposures on both.
- OM SYSTEM OM-5 body
- Not suitable
- OM SYSTEM OM-5 Mark II body
- Not suitable
What matters in practice
The differences that matter
USB-C removes a cable annoyance, not the need to plan battery breaks
For a family trip, Mark II can share a suitable USB-C supply with the rest of the bag and reduce drain while you photograph or film. The original requires power off for its USB charging routine. However, Mark II still uses its internal battery alongside the external source and stops when that battery empties. Plug the bank in while the battery is healthy, then turn the camera fully off during a break if you want it to charge. Buying a more powerful bank does not change this limit. A charged spare can be more useful than another cable during an unrepeatable school performance.
How we reached this conclusion
Manufacturer power FAQ distinguishes supply, charging, sleep and shutdown. No predicted runtime or guaranteed continuous event coverage.
A familiar grip can make the older body worth keeping
An existing OM-5 owner using the optional ECG-5 has a specific accessory to check before upgrading. The manufacturer lists that grip for the original, while Mark II has a revised built-in grip and no support for ECG-5. Someone who has already found a comfortable way to hold a longer lens should try the new body with that lens before assuming the redesign is an improvement for their hands. Both keep BLS-50 batteries and compatible Micro Four Thirds lenses, so most of the kit may transfer even though the grip does not. The four-gram body difference is too small to make a convincing buying argument by itself.
How we reached this conclusion
Official generation comparison lists ECG-5 support and 414g versus 418g. Comfort is individual and was not tested.
The new body does not turn a running child into a 50MP subject
Both cameras have the same stated 20.37MP sensor resolution and 8160×6120 handheld composite RAW output. The larger file combines exposures. That can be useful for a suitable still scene, but a child running through it or a pet changing position can disrupt the combination. Do not replace the original simply to obtain the same high-resolution label on Mark II. Spend the decision on the lens, shutter speed and handling needed for the photographs you actually miss. If you do buy the older body, verify the current seller, returns and US warranty rather than treating an available New listing as proof of authorized-dealer coverage.
How we reached this conclusion
Same sensor and composite dimensions documented in official comparison. Movement across exposures is a bounded compositing limitation, not a measured subject test. Third-party offer qualification retained.
Choice A
OM SYSTEM, V210020BU000
OM SYSTEM OM-5 body
You already use an ECG-5 grip and want to retain that fit. Confirm this third-party seller, returns and US warranty before buying.
- Best matched use
- You already use an ECG-5 grip and want to retain that fit. Confirm this third-party seller, returns and US warranty before buying.
Checked facts
- Nominal sensor resolution: 20.37MP
- Charging and shooting: Micro USB, power-off charging
- Shared spare battery: BLS-50
- External ECG-5 grip: Compatible optional accessory
Choice B
OM SYSTEM, V210070BU000
OM SYSTEM OM-5 Mark II body
A USB-C source connected early in the session would reduce battery drain, with charged BLS-50 spares still available.
- Best matched use
- A USB-C source connected early in the session would reduce battery drain, with charged BLS-50 spares still available.
Checked facts
- Nominal sensor resolution: 20.37MP
- Charging and shooting: USB-C supply reduces drain
- Shared spare battery: BLS-50
- External ECG-5 grip: Not compatible
Meaningful differences
What changes the fit
| What changes | OM SYSTEM OM-5 body | OM SYSTEM OM-5 Mark II body | Why it matters |
|---|---|---|---|
| Nominal sensor resolution | 20.37MP | 20.37MP | The update does not add single-exposure pixels. |
| Charging and shooting | Micro USB, power-off charging | USB-C supply reduces drain | Mark II can receive power while shooting, with an important battery limit. |
| Shared spare battery | BLS-50 | BLS-50 | A compatible spare set can remain useful. |
| External ECG-5 grip | Compatible optional accessory | Not compatible | An existing handling setup may favor keeping the original. |
| Stated carry weight | 414g with battery/card | 418g with battery/card | Four grams is not a meaningful reason on its own to choose the older body. |
What you give up
Every choice has a cost
If you choose OM SYSTEM OM-5 body
- Both offers exclude a lens. Check seller terms and any actual price saving before accepting the older charging routine.
If you choose OM SYSTEM OM-5 Mark II body
- Keep charged BLS-50 spares. More power-bank wattage does not remove the internal-battery limit.
Recommendation switch
The decision flips if...
An established ECG-5 setup already fits
Choose OM SYSTEM OM-5 body. The original retains that grip. A new third-party purchase still requires seller and warranty checks.
USB-C supply solves repeated travel interruptions
Choose OM SYSTEM OM-5 Mark II body. Mark II reduces drain while shooting, with a charged internal battery still necessary.
What matters in practice
Before you choose
You want fewer charging cables on a trip, but do not want to replace a working camera and grip for the same basic still-file resolution.
What this comparison cannot tell you
- No measured handling or autofocus winner.
- The 50MP composite is not a 50MP single exposure.
What the facts say
What the comparison shows
Useful conclusions from the current mirrorless cameras comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| OM SYSTEM OM-5 body |
|
| |
| OM SYSTEM OM-5 Mark II body |
|
|
|
Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
OM SYSTEM OM-5 body
You already use an ECG-5 grip and want to retain that fit. Confirm this third-party seller, returns and US warranty before buying.
A meaningfully lower total price would leave room for the lens you need, and power-off charging fits your routine.
See price & reviews on AmazonOM SYSTEM OM-5 Mark II body
A USB-C source connected early in the session would reduce battery drain, with charged BLS-50 spares still available.
You want the revised built-in grip and menus, without depending on an ECG-5 accessory.
See price & reviews on AmazonLinks open in a new tab.