Which has the better battery?

The Moto G7 Power, clearly. Its 5,000 mAh battery is roughly two-thirds larger than the G7's and owners routinely get two days per charge.

Is the Moto G7 worth stepping up to over the Power?

Yes if you value RAM, storage and screen sharpness over battery life. The G7's 4 GB RAM and 64 GB storage make it the smoother phone day to day.

Which is better for watching video?

The Moto G7. Its 1080p panel is noticeably sharper than the Power's 720p screen at the same 6.2-inch size.

Do either of these still get Android updates?

No. Both launched in 2019 and are past their update window, so expect Android security patches to be well behind current releases.

Which lasts longer over time?

The G7 Power's bigger battery degrades more slowly in daily use, but the G7's extra RAM and storage keep it usable longer as apps grow.

Do both take a microSD card and a headphone jack?

Yes. Both have expandable storage and a 3.5 mm headphone jack, so wired headphones work on either.

Motorola Moto G7 Power vs Motorola Moto G7

The Moto G7 Power is the endurance pick: its 5,000 mAh battery is the reason to choose it, and owners consistently praise two-day use. The Moto G7 is the better all-round phone: 4 GB RAM, 64 GB storage and a sharper 1080p display make daily use smoother. Both are 2019 4G phones with a headphone jack and microSD slot, so neither is a long-term buy. Pick the Power for battery life, the G7 for memory and storage.

Choose the Moto G7 Power if battery life matters most and you want a phone that can run two days between charges.
Choose the Moto G7 if you want more RAM and double the storage for smoother everyday use.

Prices

Motorola Moto G7 Power: $42.00 at Walmart (last seen Nov 6)
Motorola Moto G7: $129.00 at Walmart (last seen Nov 9)
Difference: the Motorola Moto G7 Power is $87.00 cheaper than the Motorola Moto G7 at the latest prices (Nov 6 and Nov 9)