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OnePlus 15: Size Comparison

By Aleksandar Anastasov

Updated: Oct 29, 2025, 10:26 AM

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OnePlus

Curious how the OnePlus 15 stacks up against other phones in terms of size and weight? Below, we’ve rounded up the dimensions and weight of the OnePlus 15, along with comparisons against its predecessors and today’s top flagships.

While the OnePlus 15 doesn’t come with any drastic changes to its size over the previous model, it does introduce a few notable differences in proportions and design. With its flat display, larger battery, and sturdier metal frame, the OnePlus 15 feels more solid in the hand while keeping roughly the same footprint as before.

OnePlus 15 vs Galaxy S25 Ultra vs iPhone 17 Pro Max vs Pixel 10 Pro XL

Front view
Side view

OnePlus 15

Dimensions

6.35 x 3.02 x 0.32 inches

161.4 x 76.7 x 8.1 mm

Weight

7.44 oz (211 g)

Apple iPhone 17 Pro Max

Dimensions

6.43 x 3.07 x 0.34 inches

163.4 x 78.0 x 8.75 mm

Weight

8.22 oz (233 g)

Google Pixel 10 Pro XL

Dimensions

6.41 x 3.02 x 0.33 inches

162.8 x 76.6 x 8.5 mm

Weight

8.18 oz (232 g)

Samsung Galaxy S25 Ultra

Dimensions

6.41 x 3.06 x 0.32 inches

162.8 x 77.6 x 8.2 mm

Weight

7.69 oz (218 g)

OnePlus 15

Dimensions

6.35 x 3.02 x 0.32 inches

161.4 x 76.7 x 8.1 mm

Weight

7.44 oz (211 g)

Apple iPhone 17 Pro Max

Dimensions

6.43 x 3.07 x 0.34 inches

163.4 x 78.0 x 8.75 mm

Weight

8.22 oz (233 g)

Google Pixel 10 Pro XL

Dimensions

6.41 x 3.02 x 0.33 inches

162.8 x 76.6 x 8.5 mm

Weight

8.18 oz (232 g)

Samsung Galaxy S25 Ultra

Dimensions

6.41 x 3.06 x 0.32 inches

162.8 x 77.6 x 8.2 mm

Weight

7.69 oz (218 g)

Compare these and other phones using our Size Comparison tool.

Here, the OnePlus 15 finds itself right between the major flagships. It’s slightly shorter and narrower than the Galaxy S25 Ultra and the iPhone 17 Pro Max, but it is very similar in size to the Pixel 10 Pro XL. At 7.44 oz (211 g), it’s the lightest of the group by a noticeable margin, with the iPhone and Pixel crossing the 8 oz mark, and the Galaxy not that far behind it. That makes the OnePlus 15 one of the more compact large-screen flagships of the year.

OnePlus 15 vs OnePlus 13 vs OnePlus 12 vs OnePlus 11

Front view
Side view

OnePlus 15

Dimensions

6.35 x 3.02 x 0.32 inches

161.4 x 76.7 x 8.1 mm

Weight

7.44 oz (211 g)

OnePlus 11

Dimensions

6.42 x 2.92 x 0.34 inches

163.1 x 74.1 x 8.53 mm

Weight

7.23 oz (205 g)

OnePlus 12

Dimensions

6.47 x 2.98 x 0.36 inches

164.3 x 75.8 x 9.15 mm

Weight

7.76 oz (220 g)

OnePlus 13

Dimensions

6.41 x 3.01 x 0.33 inches

162.9 x 76.5 x 8.5 mm

Weight

7.41 oz (210 g)

OnePlus 15

Dimensions

6.35 x 3.02 x 0.32 inches

161.4 x 76.7 x 8.1 mm

Weight

7.44 oz (211 g)

OnePlus 11

Dimensions

6.42 x 2.92 x 0.34 inches

163.1 x 74.1 x 8.53 mm

Weight

7.23 oz (205 g)

OnePlus 12

Dimensions

6.47 x 2.98 x 0.36 inches

164.3 x 75.8 x 9.15 mm

Weight

7.76 oz (220 g)

OnePlus 13

Dimensions

6.41 x 3.01 x 0.33 inches

162.9 x 76.5 x 8.5 mm

Weight

7.41 oz (210 g)

Compare these and other phones using our Size Comparison tool.

The OnePlus 15 measures 6.35 x 3.02 x 0.32 inches (161.4 x 76.7 x 8.1 mm) and weighs 7.44 oz (211 g). Compared to the OnePlus 13, the new model is slightly shorter and a touch thinner, while maintaining nearly the same width. The overall footprint has subtly decreased since the OnePlus 12 and 11, both of which were taller and heavier.

What’s interesting here is how OnePlus has gradually refined its design with every generation. The OnePlus 15 feels denser and more balanced thanks to the new metal chassis and larger battery, yet it’s still lighter than the OnePlus 12. The move to a fully flat display and thinner bezels also gives it a slightly more compact appearance when viewed from the front.

OnePlus 15 vs Vivo X300 Pro vs Oppo Find 9X Pro

Front view
Side view

OnePlus 15

Dimensions

6.35 x 3.02 x 0.32 inches

161.4 x 76.7 x 8.1 mm

Weight

7.44 oz (211 g)

Honor 9X Pro

Dimensions

6.42 x 3.04 x 0.35 inches

163.1 x 77.2 x 8.8 mm

Weight

7.27 oz (206 g)

vivo X300 Pro

Dimensions

6.38 x 2.97 x 0.31 inches

161.98 x 75.48 x 7.99 mm

Weight

7.97 oz (226 g)

OnePlus 15

Dimensions

6.35 x 3.02 x 0.32 inches

161.4 x 76.7 x 8.1 mm

Weight

7.44 oz (211 g)

Honor 9X Pro

Dimensions

6.42 x 3.04 x 0.35 inches

163.1 x 77.2 x 8.8 mm

Weight

7.27 oz (206 g)

vivo X300 Pro

Dimensions

6.38 x 2.97 x 0.31 inches

161.98 x 75.48 x 7.99 mm

Weight

7.97 oz (226 g)

See the full OnePlus 15 vs Honor 9X Pro vs vivo X300 Pro size comparison or compare them to other phones using our Size Comparison tool.

When compared with the Vivo X300 Pro and Honor 9X Pro, the OnePlus 15 lands right in the middle in both size and weight. It’s slightly shorter and thinner than both, though the differences are minor. The Vivo is the heaviest at 7.97 oz (226 g), while the OnePlus sits just below it at 7.44 oz (211 g).

All three are close in height, hovering around 6.35–6.42 inches tall.

OnePlus 15 vs Galaxy S26 Edge vs iPhone Air

Front view
Side view

OnePlus 15

Dimensions

6.35 x 3.02 x 0.32 inches

161.4 x 76.7 x 8.1 mm

Weight

7.44 oz (211 g)

Apple iPhone Air

Dimensions

6.15 x 2.94 x 0.22 inches

156.2 x 74.7 x 5.64

Weight

5.82 oz (165 g)

Samsung Galaxy S25 Edge

Dimensions

6.23 x 2.98 x 0.23 inches

158.2 x 75.6 x 5.8 mm

Weight

5.75 oz (163 g)

OnePlus 15

Dimensions

6.35 x 3.02 x 0.32 inches

161.4 x 76.7 x 8.1 mm

Weight

7.44 oz (211 g)

Apple iPhone Air

Dimensions

6.15 x 2.94 x 0.22 inches

156.2 x 74.7 x 5.64

Weight

5.82 oz (165 g)

Samsung Galaxy S25 Edge

Dimensions

6.23 x 2.98 x 0.23 inches

158.2 x 75.6 x 5.8 mm

Weight

5.75 oz (163 g)

See the full OnePlus 15 vs Apple iPhone Air vs Samsung Galaxy S25 Edge size comparison or compare them to other phones using our Size Comparison tool.

Against the new wave of thin, premium phones, the OnePlus 15 shows its flagship size more clearly. It’s both taller and wider than the Galaxy S26 Edge and the iPhone Air, and considerably heavier at 7.44 oz (211 g) versus the iPhone’s 5.82 oz (165 g) and the Galaxy’s 5.75 oz (163 g).

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View Full Bio

Aleksandar is a tech enthusiast with a broad range of interests, from smartphones to space exploration. His curiosity extends to hands-on DIY experiments with his gadgets, and he enjoys switching between different brands to experience the latest innovations. Prior to joining PhoneArena, Aleksandar worked on the Google Art Project, digitizing valuable artworks and gaining diverse perspectives on technology. When he's not immersed in tech, Aleksandar is an outdoorsman who enjoys mountain hikes, wildlife photography, and nature conservation. His interests also extend to martial arts, running, and snowboarding, reflecting his dynamic approach to life and technology.

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