Which has the better battery life?

The iPhone 15 Plus. Its 4,383 mAh battery is rated for up to 26 hours talk time and 111 hours overall, against 20 hours of video playback on the iPhone 15.

Is the iPhone 15 Plus worth the extra money?

It is actually cheaper here: $379.00 at ItsWorthMore versus $499.00 at Walmart for the iPhone 15 as of November 6, 2026. The catch is that the Plus is certified refurbished, not new.

Do they have the same camera?

Yes. Both use a 48 MP main camera, a 12 MP ultra wide and a 12 MP 2x telephoto. Photos should look the same; the Plus just shows them on a larger screen.

Which is easier to hold?

The iPhone 15. At 6.03 oz and 6.1 inches it is lighter and smaller than the 7.09 oz, 6.7-inch iPhone 15 Plus.

Are both water resistant?

Yes. Both are IP68 rated and can survive a dip to 6 meters for up to 30 minutes.

Which lasts longer over the years?

Both use the A16 Bionic chip and iOS, so software support should match. The Plus has the larger battery, which usually means more charge cycles before a battery service.

Apple iPhone 15 128GB vs Apple iPhone 15 Plus 128GB

Buy the iPhone 15 Plus if battery life and screen size matter most: its 4,383 mAh battery and 6.7-inch display beat the 6.1-inch iPhone 15, and at $379.00 at ItsWorthMore as of November 6, 2026 it is $120 cheaper than the iPhone 15's $499.00 at Walmart. Buy the iPhone 15 if you want the smaller, lighter phone that fits one hand and pockets easily. Both run iOS on the same A16 Bionic chip, so speed is a tie.

Today the Apple iPhone 15 Plus 128GB costs $10.00 less at its best price.

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