Oppo K13 alternatives
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Xiaomi 15 Ultra alternatives
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Xiaomi 15 Ultra

Xiaomi 15 Ultra
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Snapdragon 8 Elite
3 nm
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5410 mAh
90W
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6.73"
1440 x 3200 pixels
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50 MP
8K@30fps
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Specs
1x2.3 GHz Cortex-A720s
3x2.2 GHz Cortex-A720s
4x1.8 GHz Cortex-A520s
2x4.32 GHz Oryon V2 Phoenix L
6x3.53 GHz Oryon V2 Phoenix M
8GB 256GB (UFS 3.1)
16GB 512GB (UFS 4.1)
16GB 1024GB (UFS 4.1)
f/1.9, 27mm (wide), 1/2.88", OmniVision OV50D40, PDAF
2 MP
f/2.4, (depth)
f/1.6, 23mm (wide), 1.0"-type, 1.6µm, Sony LYT-900, dual pixel PDAF, OIS
50 MP
f/1.8, 70mm (telephoto), 1/2.51", 0.7µm, Sony IMX858, dual pixel PDAF (10cm - ∞), OIS, 3x optical zoom
200 MP
f/2.6, 100mm (periscope telephoto), 1/1.4", 0.56µm, Samsung S5KHP9, multi-directional PDAF, OIS, 4.3x optical zoom
50 MP
f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, Samsung S5KJN5, dual pixel PDAF
TOF 3D, (depth)
1080p@30/60/120fps
4K@30/60/120fps
1080p@30/60/120/240/480/960/1920fps
f/2.5, 23mm (wide), 1/3.0", 1.0µm, Sony IMX840
f/2.0, 21mm (wide), 1/3.14", 0.7µm, OmniVision OV32B40
1080p@30/60fps
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
9 5G bands
n1, n3, n5, n8, n28, n40, n41, n77, n78
21 5G bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n26, n28, n38, n40, n41, n48, n66, n71, n75, n77, n78, n79
In this performance comparison, the Xiaomi 15 Ultra with its Qualcomm Snapdragon 8 Elite (3nm) performs better than the Oppo K13 with the Qualcomm Snapdragon 6 Gen 4 (4nm), thanks to superior chipset efficiency.
Xiaomi 15 Ultra offers 4 years of OS updates, whereas Oppo K13 provides 2 years. For security updates, Xiaomi 15 Ultra offers 6 years of support compared to Oppo K13's 3 years.
Both Oppo K13 and Xiaomi 15 Ultra feature AMOLED displays, offering vibrant colors and deeper blacks. Both smartphones offer the same 120 Hz refresh rate. Xiaomi 15 Ultra also boasts a brighter screen with 3200 nits of peak brightness, enhancing outdoor visibility. Notably, Xiaomi 15 Ultra offers a higher screen resolution, resulting in sharper visuals and more detailed content.
Oppo K13 comes with a larger 7000 mAh battery, which may offer longer usage on a single charge. Xiaomi 15 Ultra also supports faster wired charging at 90W, compared to 80W on Oppo K13. Xiaomi 15 Ultra supports wireless charging at 80W, while Oppo K13 lacks this feature.
Xiaomi 15 Ultra offers better protection against water and dust with an IP68 rating.
- Oppo K13 – Check price here
- Xiaomi 15 Ultra – Check price here
¹ Scores can vary even with the same chipset due to RAM, thermals, and software optimization.