The main difference between the Odin 2 Portal and the RG-556 is power.
The Odin 2 Portal plays everything up to PS2 well, while the RG-556 tops out at Wii.
Other differences
- The RG-556 launched at about $175 and the Odin 2 Portal at about $320.
- The Odin 2 Portal has a 7.0 inch screen against 5.48 inches on the RG-556.
- The Odin 2 Portal carries an 8,000 mAh battery, the RG-556 5,500 mAh.
- The Odin 2 Portal runs on the Qualcomm Snapdragon 8 Gen 2, the RG-556 on the UNISOC Tiger T820.
Which is better
Which fits in a pocket better?
RG-556The RG-556 (223 x 90 x 15-25 mm, 331 g). The Odin 2 Portal is 257 x 98.6 x 17.2 mm, 430 g. Neither fits a jeans pocket; think jacket pocket or bag.
Which is better for PS2 games, the Odin 2 Portal or the RG-556?
Odin 2 PortalThe Odin 2 Portal. It scores 90 out of 100 for PS2 against 74.
Which costs less?
RG-556The RG-556, at about $175 at launch against $320. Prices today vary by store and the used market.
Which is better for GBA games?
TieBoth run GBA at full speed and fill about the same share of the screen with even pixels: 67% of the Odin 2 Portal's screen at 6x, 67% of the RG-556's screen at 6x.
Which has the bigger battery?
Odin 2 PortalThe Odin 2 Portal, at 8,000 mAh against 5,500 mAh. That is capacity only: the chips differ, and the heavier the system you play, the faster either one drains.
Side by side
| Odin 2 Portal | RG-556 | |
|---|---|---|
| Launch price | $320 | $175 |
| Released | Jan 2025 | Mar 2024 |
| Plays well up to | PS2 | Wii |
| Shape | Horizontal | Horizontal |
| Software | Android | Android |
| Chip | Qualcomm Snapdragon 8 Gen 2 | UNISOC Tiger T820 |
| Memory | 8 GB | 8 GB |
| Screen | 7.0 inch AMOLED 16:9 | 5.48 inch AMOLED 16:9 |
| Resolution | 1920 x 1080 | 1920 x 1080 |
| Battery | 8,000 mAh | 5,500 mAh |
| Weight | 430 g | 331 g |
| Size | 257 x 98.6 x 17.2 mm | 223 x 90 x 15-25 mm |
| Analog sticks | Double, asymmetrical | Double, asymmetrical |
| Hall effect sticks | Yes | Yes |
| L2 and R2 | Yes, stacked | Yes, stacked |
| Analog triggers | Yes | Yes |
| Wi-Fi | Yes | Yes |
| Video out | Yes | Yes |
| Headphone jack | Yes | Yes |
Green marks the better value where one is clearly better. Prices are launch prices.
Emulation
- Odin 2 PortalRG-556
- Game Boy
- NES
- Genesis
- GBA
- SNES
- PS1
- DS
- N64
- Dreamcast
- PSP
- Saturn
- GameCube
- 3DS
- Wii
- PS2
- Switch
- Wii U
- PS3
100 means the system runs at full speed with no known issues.
Full details
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More comparisons
Why this pair: buyers weigh these two against each other. 10 comments by 10 different people compare them in community discussions, and 4 post titles name both. Specs, emulation scores and launch prices from the retrocatalog.com handheld database.