Which is better for recording in rain or near water?

The RFAWKNG. It is IPX8 rated to 131ft, while the SHWD has no waterproof rating. Keep the SHWD dry.

Which has the better battery life?

The SHWD. Its 1500mAh cell runs longer than the RFAWKNG's rated 120 minutes. The RFAWKNG's 4K recording drains power faster.

Is the RFAWKNG worth stepping up to over the SHWD?

Yes if you need 4K detail, a rotating lens, WiFi or waterproofing. If you just want simple 1080p clips, the SHWD covers it.

Which is easier to use?

The SHWD. Side switches start recording without an app. The RFAWKNG needs app setup for WiFi and motion alerts.

Do either include a memory card?

No. Both take microSD cards up to 256GB, sold separately. Use a high-speed card, especially for 4K on the RFAWKNG.

Which is better for a wide view of a room?

The SHWD. Its fixed 125° lens captures more scene. The RFAWKNG's rotating lens helps you aim, but its field of view is narrower.

RFAWKNG Mini Clip Body Camera vs SHWD Mini Body Camera

Buy the RFAWKNG if you need real 4K detail, a rotating lens, or use near or in water. Buy the SHWD if you want a simple, wide-angle 1080p clip camera with a bigger battery and a lower-risk buy. The RFAWKNG wins on resolution, lens flexibility and waterproofing. The SHWD wins on battery capacity, wide-angle framing and simple controls. Neither is a premium brand, so judge both on the unit you receive.

Choose the RFAWKNG if you need 4K footage, a 360° rotating lens, or a camera that survives being submerged.
Choose the SHWD if you want a straightforward 1080p clip camera with a wide 125° view and a larger battery.

Prices

RFAWKNG Mini Clip Body Camera: $26.91 at Walmart (checked today)
SHWD Mini Body Camera: $13.99 at Amazon (checked today)
Difference: the SHWD Mini Body Camera is $12.92 cheaper than the RFAWKNG Mini Clip Body Camera today