CMF Phone 2 Pro VS Vivo T4 Ultra 5G

Both the CMF Phone 2 Pro and the Vivo T4 Ultra 5G share a water-resistant build with no rugged or foldable form factor, but they diverge in meaningful ways when it comes to size, weight, and protection level. The Vivo is the more compact device across every physical dimension — shorter at 160.6 mm vs. 164 mm, narrower at 75 mm vs. 78 mm, and its total volume of 90.34 cm³ is notably smaller than the CMF's 99.78 cm³. In practical terms, the Vivo will feel more pocketable and easier to grip one-handed, especially for users with smaller hands.

The CMF Phone 2 Pro, however, is the lighter phone at 185 g versus the Vivo's 192 g. That 7-gram difference is modest but perceptible over long usage sessions. Interestingly, the CMF is also slightly thicker at 7.8 mm compared to the Vivo's 7.5 mm, which is a common trade-off when a larger footprint is paired with a lighter chassis — suggesting different internal layout choices by each manufacturer.

The most significant differentiator in this group is the IP rating. The Vivo T4 Ultra carries an IP64 rating, while the CMF Phone 2 Pro is rated IP54. The first digit — dust protection — is where they differ: a rating of 6 means fully dust-tight, whereas 5 only means dust-protected (partial ingress allowed). For users in dusty environments or those who want greater long-term reliability, the Vivo's stronger dust protection is a tangible advantage. Overall, the Vivo T4 Ultra 5G holds a clear edge in this group, combining a more compact form factor with superior ingress protection, even if the CMF is marginally lighter.

At a glance, these two phones share the same OLED/AMOLED panel technology and a 120Hz refresh rate, but beneath those surface-level similarities lie some meaningful differences. The Vivo T4 Ultra's 1260 x 2800 px resolution on a 6.67″ screen translates to a pixel density of 460 ppi — noticeably sharper than the CMF Phone 2 Pro's 388 ppi on its slightly larger 6.77″ panel. In everyday use, that gap becomes visible when reading fine text, viewing detailed photos, or watching high-resolution video content.

Where the gap becomes harder to ignore is brightness. The Vivo delivers 1600 nits of typical brightness — double the CMF's 800 nits. This is not a marginal difference; in direct sunlight or bright outdoor environments, the Vivo will remain far more legible. For users who frequently use their phone outdoors, this is one of the most impactful real-world display distinctions possible. On the flip side, the CMF Phone 2 Pro counters with HDR10 and HDR10+ support, which enables richer contrast and color depth when streaming compatible content — a feature the Vivo entirely lacks. The CMF also includes branded damage-resistant glass, adding a layer of long-term durability that the Vivo does not offer.

Neither phone supports Dolby Vision, and both feature Always-On Display, so those factors are a wash. On balance, the Vivo T4 Ultra holds the stronger display advantage for most users — its superior sharpness and dramatically higher brightness cover the two metrics that affect daily visibility most. The CMF's HDR10+ support is a genuine perk for media consumption, but it doesn't outweigh the Vivo's lead in core display performance.

The chipset divide here is stark. The CMF Phone 2 Pro runs on a MediaTek Dimensity 7300 — a capable mid-range processor — while the Vivo T4 Ultra is powered by the Dimensity 9300 Plus, a flagship-tier chip. That distinction cascades through every performance metric in this group. The Vivo's AnTuTu score of 2,136,863 is nearly three times the CMF's 711,907, and the Geekbench 6 multi-core result tells a similar story: 7,547 versus 2,874. These aren't marginal gains — they represent a fundamentally different performance tier, meaning the Vivo will handle demanding workloads, heavy multitasking, and graphically intensive games with considerably more headroom.

The GPU gap reinforces this further. The Vivo's Arm Immortalis-G720 MC12 running at 1300 MHz is a top-tier graphics unit, compared to the CMF's Mali G615 MC2 at 1047 MHz. For gaming and GPU-accelerated tasks, the difference in real-world frame rates and visual fidelity will be substantial. The transistor count also reflects the generational gap — 22,700 million on the Vivo versus 6,200 million on the CMF — which speaks to the architectural complexity and efficiency potential of the Dimensity 9300 Plus. Storage and memory also favor the Vivo, with 512GB of internal storage and 12GB of RAM against the CMF's 256GB and 8GB.

One nuance worth noting: the CMF's RAM runs at 6400 MHz versus the Vivo's 4800 MHz, meaning the CMF's memory has higher bandwidth per module — but this advantage is far outweighed by the Vivo's larger RAM pool and superior CPU throughput. The verdict in this group is unambiguous: the Vivo T4 Ultra holds a dominant performance advantage at every level, from raw compute to graphics to storage capacity.

On paper, the two rear camera systems look almost identical — both sport a 50 + 50 + 8 MP triple-lens array, OIS, phase-detection autofocus, and 4K 30fps video recording. But dig into the details and some real trade-offs emerge. The most practically significant is optical zoom: the Vivo T4 Ultra offers 3x optical zoom versus the CMF Phone 2 Pro's 2x, and this is reinforced by their focal length ranges — the Vivo reaches up to 85 mm on the telephoto end compared to the CMF's 50 mm. For users who frequently shoot subjects at a distance, the Vivo will produce sharper, more detail-retaining zoomed shots without relying on digital cropping.

The wide-angle story flips things around. The CMF's minimum focal length of 15 mm versus the Vivo's 23 mm means the CMF can capture significantly wider scenes — an advantage for architecture, landscapes, or tight indoor spaces. There's also an aperture nuance on the secondary 50 MP lens: the CMF offers f/1.9 compared to the Vivo's f/2.6, which means more light intake and potentially better low-light performance on that specific lens. For selfie shooters, the Vivo counters with a 32 MP front camera against the CMF's 16 MP, though the CMF's front aperture of f/2.0 is wider than the Vivo's f/2.5, partially offsetting the resolution gap in dimmer conditions.

This is genuinely one of the closer category matchups between these two devices. The Vivo T4 Ultra has a slight overall edge thanks to its more versatile telephoto reach, but the CMF Phone 2 Pro carves out clear advantages in ultra-wide coverage and secondary lens aperture. Which phone wins here depends heavily on shooting style — zoom-focused users lean Vivo, wide-angle and low-light users lean CMF.

Rarely does a spec group produce a result this conclusive: every single data point in this category is identical between the two phones. Both run Android 15, both lack direct OS updates, and both share the same full feature set — including dark mode, dynamic theming, split-screen multitasking, Picture-in-Picture, on-device machine learning, offline voice recognition, and a comprehensive suite of privacy controls covering location, camera, and microphone access.

The absence of differentiators here is itself informative. Neither phone gets direct OS updates from Google, meaning both rely on their respective manufacturers for software patches and version upgrades — a consideration for users who prioritize long-term software support. Neither supports Wi-Fi password sharing or focus modes, and neither can be used as a PC substitute. These shared omissions apply equally and do not favor either device.

This group is an unambiguous tie. From a software and OS feature perspective, there is no basis to prefer one phone over the other — the decision here comes down entirely to the hardware and ecosystem comparisons made in other spec groups.

The Vivo T4 Ultra edges ahead on capacity with a 5500 mAh battery versus the CMF Phone 2 Pro's 5000 mAh. That 10% difference is modest in isolation, but combined with the Vivo's larger overall cell, it translates to a meaningful buffer for heavy users pushing through a full day and into the evening. Both phones lack wireless charging, so neither caters to that increasingly common convenience feature.

Charging speed is where the gap becomes decisive. The Vivo supports 90W fast charging — nearly three times the CMF's 33W. In practical terms, a 90W charger can take a depleted battery to a usable level in a fraction of the time, making the Vivo far more forgiving for users with busy schedules or limited access to power outlets. The CMF's 33W is adequate but increasingly pedestrian at this point in the market. Adding further value, the Vivo comes bundled with a charger in the box, while the CMF does not — a not-insignificant cost consideration given that a compatible fast charger must be purchased separately.

Across every dimension of this category — capacity, charging speed, and out-of-box readiness — the Vivo T4 Ultra holds a clear and well-rounded advantage. The CMF Phone 2 Pro has no meaningful battery counterpoint based on the provided specs.

Audio is a lean category for both phones, with one differentiator that matters. Neither device includes a 3.5mm headphone jack, a radio, or any high-resolution wireless audio codec — no aptX, LDAC, or their variants. For wired audio purists or radio listeners, both phones fall equally short.

The single meaningful distinction is that the Vivo T4 Ultra features stereo speakers, while the CMF Phone 2 Pro does not. Stereo output — typically one speaker at the earpiece and one at the bottom — creates a noticeably wider, more immersive soundstage for media consumption, video calls, and casual music playback. A mono speaker, by contrast, projects sound in one direction only, which feels comparatively flat when watching videos or playing games without headphones.

Given how thin the data is here, the conclusion is straightforward: the Vivo T4 Ultra has the edge in this group solely on the strength of its stereo speakers. For users who regularly consume media on their phone without headphones, that distinction is genuinely impactful. The CMF Phone 2 Pro offers no audio advantage based on the provided specs.

Much of the connectivity foundation is shared — both phones support 5G, dual SIM, NFC, USB Type-C, Wi-Fi 6, GPS with Galileo, and an identical sensor package including gyroscope, accelerometer, and compass. For everyday connectivity needs, either phone covers the essentials without compromise. The Bluetooth gap is minor: the Vivo carries version 5.4 versus the CMF's 5.3, a modest generational step that brings incremental improvements in connection stability and efficiency but is unlikely to be perceptible in daily use.

The most dramatic divergence in this group is cellular data throughput. The Vivo T4 Ultra's modem supports download speeds up to 10,000 Mbits/s and uploads up to 7,000 Mbits/s, compared to the CMF Phone 2 Pro's 3,270 Mbits/s symmetrically. This reflects a significantly more capable modem — relevant in dense urban environments with advanced 5G infrastructure, or for users who regularly transfer large files over cellular. In typical real-world conditions the difference will rarely be felt, but it signals a higher-tier modem architecture in the Vivo.

The one area where the CMF Phone 2 Pro flips the advantage is expandable storage: it includes an external memory card slot, which the Vivo entirely omits. For users who want to cheaply expand storage or transfer files via physical media, this is a genuine practical benefit. That said, taken as a whole, the Vivo T4 Ultra holds the stronger position in this group — its superior modem speeds and marginally newer Bluetooth outweigh the CMF's memory card slot for most connectivity-focused use cases.

This is the smallest spec group in the comparison, and it yields no differentiation whatsoever. Both the CMF Phone 2 Pro and the Vivo T4 Ultra share every attribute here identically — both have a video light, and neither features sapphire glass, a curved display, or an e-paper panel.

This group is a complete tie. None of the data points here provide a basis for preferring one device over the other, and the decision should rest entirely on the more substantive categories covered elsewhere in this comparison.