Sony Xperia 1 VII VS Xiaomi 15 Ultra

Both the Sony Xperia 1 VII and the Xiaomi 15 Ultra share the same IP68 waterproof rating, meaning neither has an edge in water and dust protection — both can handle submersion in fresh water under standard conditions. Neither features a rugged build or a foldable form factor, so they compete squarely as traditional candybar flagship slabs.

Where the two diverge meaningfully is in physical footprint and mass. Despite having nearly identical heights (162 mm vs 161.3 mm) and very similar widths (74 mm vs 75.3 mm), the Xiaomi 15 Ultra is notably thicker at 9.4 mm compared to the Xperia 1 VII's slimmer 8.2 mm profile. That 1.2 mm gap is perceptible in hand and in a pocket. More significantly, the Xiaomi weighs 229 g against the Sony's 197 g — a 32 g difference that translates to real fatigue during extended one-handed use or prolonged reading sessions. The volume gap (114.2 cm³ vs 98.3 cm³) confirms the Xiaomi is a physically bulkier device overall, likely driven by a larger battery or more substantial camera hardware.

For design, the Sony Xperia 1 VII holds a clear advantage for users who prioritize a lighter, thinner device that is easier to pocket and handle daily. The Xiaomi 15 Ultra's added bulk may be an acceptable trade-off if its internals justify the size, but purely on design ergonomics, the Xperia 1 VII is the more refined and manageable form factor.

Both phones use OLED/AMOLED panels with a 120Hz refresh rate and Always-On Display support, so the baseline viewing experience is competitive on both sides. The real gap opens up in resolution and pixel density: the Xiaomi 15 Ultra's 1440 x 3200 px panel at 522 ppi is a significant step above the Xperia 1 VII's 1080 x 2340 px at 396 ppi. That 126 ppi difference is genuinely visible — text appears sharper, fine UI details are crisper, and high-resolution photos render with more fidelity on the Xiaomi's screen. The larger 6.73″ canvas further amplifies this advantage for media consumption and productivity.

The HDR story also favors the Xiaomi. While both support HDR10, the Xiaomi 15 Ultra adds HDR10+ and Dolby Vision compatibility, which means it can display dynamic metadata-enhanced content from streaming platforms that use those formats — resulting in more precisely tone-mapped highlights and shadows on a scene-by-scene basis. The Xperia 1 VII supports neither, which is a tangible limitation for premium content consumption. On the flip side, the Xperia counters with branded damage-resistant glass — an important durability consideration absent on the Xiaomi.

Overall, the Xiaomi 15 Ultra holds a clear display advantage: its higher resolution, superior pixel density, and broader HDR format support make it the stronger choice for anyone who prioritizes screen quality. The Xperia 1 VII's glass protection is a meaningful real-world benefit, but it does not offset the gap in raw display performance.

At the silicon level, these two phones are virtually identical. Both are powered by the Qualcomm Snapdragon 8 Elite on a 3 nm process, with the same Adreno 830 GPU, identical CPU clock configuration, and matching Geekbench 6 scores — 3234 single-core and 10059 multi-core. For day-to-day tasks, gaming, and sustained workloads, users of either device will experience the same level of raw processing performance.

The differentiators are in memory and storage provisioning. The Xiaomi 15 Ultra ships with 16GB of RAM versus 12GB on the Xperia 1 VII — a meaningful gap for heavy multitaskers who keep many apps suspended in the background simultaneously. On storage, the contrast is even starker: 1TB on the Xiaomi against 512GB on the Sony. For users who shoot large volumes of video or store extensive local media libraries, that doubling of capacity is a genuine practical advantage. The AnTuTu scores also diverge — 2,746,580 for the Xiaomi versus 2,062,177 for the Xperia — which is a notable gap given the identical chipset; this likely reflects how each device's memory configuration and thermal management interact with the benchmark workload.

The Xiaomi 15 Ultra takes the edge in this category. The underlying compute muscle is a dead heat, but the Xiaomi's additional RAM and double the internal storage make it the more future-proof and capacity-generous option for power users pushing the hardware to its limits.

The camera hardware gap between these two devices is substantial. The Xiaomi 15 Ultra deploys a four-lens system headlined by a 200 MP main sensor, complemented by three additional 50 MP lenses, while the Xperia 1 VII runs a three-lens setup topping out at 48 MP. The Xiaomi also gains an edge in selfie capability with a 32 MP front camera against the Sony's 12 MP, and adds laser autofocus for faster, more reliable subject locking in challenging conditions — a feature absent on the Xperia.

The video and zoom stories, however, are more nuanced. The Xperia 1 VII punches hard with 7.1x optical zoom — significantly ahead of the Xiaomi's 4.3x — making it the stronger choice for telephoto reach. In video, the two phones prioritize different things: the Xperia captures up to 4K at 120 fps, ideal for smooth slow-motion and high-frame-rate content, while the Xiaomi shoots 8K at 30 fps for maximum resolution capture. The Xiaomi further supports Dolby Vision recording, expanding its appeal for cinematic video workflows that the Xperia cannot match.

Taken together, the Xiaomi 15 Ultra holds the broader camera advantage — more lenses, far higher megapixel counts, a stronger front camera, and richer video format support all point in its favor. The Xperia 1 VII carves out a meaningful niche with its superior optical zoom reach and high-frame-rate video, which will matter to specific users, but as an overall camera system the Xiaomi offers considerably more versatility.

Running the same version of Android 15, these two devices are remarkably aligned at the OS level. Across privacy controls, productivity features, and system utilities — from on-device machine learning and customizable notifications to split-screen multitasking and Picture-in-Picture — the feature parity is almost total. Neither phone receives direct OS updates from Google, and both share the same set of omissions, including Wi-Fi password sharing and cross-site tracking blocking.

The single differentiator in this entire spec group is focus modes, which the Xiaomi 15 Ultra supports and the Xperia 1 VII does not. Focus modes allow users to restrict notifications and app access during designated activities — work, sleep, or personal time — helping manage digital interruptions in a structured way. It is a convenience-oriented feature rather than a core functionality, but for users who rely on scheduled digital boundaries, its absence on the Xperia is a minor but genuine gap.

This category is essentially a tie, with the Xiaomi 15 Ultra claiming the narrowest of margins thanks solely to focus mode support. Neither device distinguishes itself meaningfully at the OS feature level; the choice between them will rest on hardware differences rather than software capabilities.

The battery category is one of the most decisive in this comparison, and the Xiaomi 15 Ultra leads across every meaningful metric. Its 6000 mAh cell outpaces the Xperia 1 VII's 5000 mAh by a full 20%, which translates directly to longer time between charges under equivalent usage conditions — a tangible daily advantage, particularly for heavy users who struggle to make it through a full day.

The charging speed gap is even more dramatic. The Xiaomi supports 90W wired charging compared to the Xperia's 30W — meaning the Xiaomi can replenish its larger battery in a fraction of the time it takes the Sony to top up its smaller one. The wireless charging disparity is equally stark: 80W on the Xiaomi versus 15W on the Xperia. At 80W, wireless charging on the Xiaomi approaches the wired speeds of many competing flagship phones, making cable-free top-ups genuinely fast rather than a slow overnight convenience. Both phones support reverse wireless charging for topping up accessories. The Xiaomi also includes a charger in the box — a practical bonus the Xperia omits.

The Xiaomi 15 Ultra wins this category comprehensively. It carries more capacity, charges faster by a wide margin both wired and wirelessly, and ships with a charger included. For battery-conscious buyers, the Xperia 1 VII offers no compelling counterargument here.

Wireless audio quality is a non-issue for either device — both support the same comprehensive codec stack: aptX, aptX HD, aptX Adaptive, aptX Lossless, and LDAC. This means users with high-resolution Bluetooth headphones or earbuds will get the full benefit of lossless or near-lossless wireless audio on either phone, with no compromises on that front.

The two differentiators are connectivity and microphone count. The Xperia 1 VII retains a 3.5 mm headphone jack — increasingly rare at the flagship tier — which matters significantly to audiophiles with wired headphone collections, musicians, or anyone who prefers zero-latency, no-battery-required listening. The Xiaomi 15 Ultra omits it entirely, committing users to wireless or USB-C audio. Conversely, the Xiaomi gains an edge in voice capture with 4 microphones versus the Xperia's 2. More microphones enable more sophisticated noise cancellation and beamforming, which improves call clarity, voice recordings, and video audio in noisy environments.

This category comes down to use-case priorities rather than one device being outright superior. The Xperia 1 VII is the better pick for wired audio enthusiasts, while the Xiaomi 15 Ultra has the edge for voice capture and hands-free communication. Users who rely on neither wired headphones nor frequent voice recording will find the two devices effectively matched.

At the core connectivity level, these two phones are well matched. Both support 5G, Wi-Fi 7, Bluetooth 6, NFC, and USB 3.2 Type-C, with identical peak download and upload speeds. Sensors are also largely equivalent — gyroscope, accelerometer, barometer, GPS, compass, and Galileo support appear on both. For the vast majority of day-to-day connectivity use cases, neither phone has a meaningful structural advantage over the other.

The differentiators, however, are worth noting. The Xperia 1 VII offers a microSD card slot for expandable storage, a feature the Xiaomi 15 Ultra foregoes entirely — a meaningful advantage for users who want to extend their storage cheaply or transfer files physically. The Xperia also supports 1 physical SIM plus 1 eSIM, while the Xiaomi provides 2 physical SIM slots, which is more practical for users who travel internationally or need two active lines without relying on eSIM infrastructure. Flipping the equation, the Xiaomi adds an infrared sensor — useful as a universal remote for TVs and appliances — and critically, emergency SOS via satellite, which allows distress signaling in areas without cellular coverage, a potentially life-saving capability the Xperia lacks entirely.

This category ends in a functional split rather than a clear winner. The Xperia 1 VII suits users who value expandable storage and dual physical SIM flexibility, while the Xiaomi 15 Ultra edges ahead for those who prioritize safety features like satellite SOS and the added utility of an infrared blaster. The satellite emergency feature, given its potential stakes, tips the overall balance marginally in the Xiaomi's favor.

The miscellaneous spec group for these two devices reveals a complete dead heat. Both the Sony Xperia 1 VII and the Xiaomi 15 Ultra share a video light, and neither features sapphire glass, a curved display, or an e-paper display. There is not a single point of differentiation across any of the provided data points.

This is a tie in every respect. The decision between these two phones will rest entirely on the advantages and trade-offs surfaced in the other specification categories.