CMF Phone 2 Pro VS Nothing Phone (3a) Pro

In terms of physical form, these two phones share a nearly identical footprint — both sit at roughly 164 mm tall and 77–78 mm wide — meaning neither will feel dramatically larger in the hand. Where they diverge meaningfully is in mass and bulk: the CMF Phone 2 Pro comes in at 185 g with a 7.8 mm profile, while the Nothing Phone (3a) Pro is noticeably heavier at 211 g and thicker at 8.4 mm. That 26 g difference is perceptible during extended one-handed use or when carrying the phone in a pocket for hours — the CMF simply feels less fatiguing over time.

On water resistance, both phones carry an IP54 and IP64 rating respectively. The shared ″4″ suffix means both handle splashes and rain equally well, but the leading digit is where they split: IP5x offers partial dust resistance, while the Nothing Phone (3a) Pro's IP64 rating provides full dust ingress protection. In practice, neither device is rated for submersion, but the Nothing has a real-world edge in dusty or sandy environments — a factor worth considering for users in those conditions.

Overall, the CMF Phone 2 Pro holds a clear advantage in ergonomics and portability — it is lighter, slimmer, and occupies less volume — making it the better pick for comfort-conscious users. However, the Nothing Phone (3a) Pro counters with a superior IP64 dust rating, giving it a slight durability edge in harsh environments. Neither phone has a rugged build or foldable form factor, so the choice between them on design comes down to whether you prioritize everyday handling comfort or broader environmental protection.

For all practical purposes, these two displays are twins: both offer a 6.77″ OLED panel at 1080 x 2392 px, landing at virtually the same 387–388 ppi pixel density. Pair that with identical 120Hz refresh rates, 1000Hz touch sampling, and 800 nits typical brightness, and day-to-day usage will look and feel indistinguishable between the two. HDR10+ support on both further ensures consistent rendering of high-dynamic-range content from streaming platforms.

The two meaningful differentiators lie in contrast ratio and glass protection. The Nothing Phone (3a) Pro specifies a 5,000,000:1 contrast ratio versus the CMF's 1,000,000:1 — a fivefold difference on paper. On OLED panels, contrast ratio reflects how deeply blacks are rendered; a higher figure suggests richer shadow detail and more vivid perceived color in dark scenes, though both panels will already produce true blacks by nature of OLED pixel-level shutoff. The real-world gap may be subtle, but it favors the Nothing in media consumption scenarios. Swinging the other way, the CMF Phone 2 Pro ships with branded damage-resistant glass — a meaningful long-term durability advantage that the Nothing Phone (3a) Pro lacks, making the CMF's screen inherently more resistant to everyday scratches and drops.

This group ends in a near-draw with two distinct trade-offs: the Nothing edges ahead on contrast ratio for a potentially richer visual output, while the CMF counters with superior screen protection. Users who prioritize display longevity and scratch resistance should lean toward the CMF Phone 2 Pro, while those who consume a lot of dark-themed or HDR content may appreciate the Nothing Phone (3a) Pro's contrast advantage.

Both phones are built on 4 nm chips with 8-thread big.LITTLE architectures and ship with 256GB of storage, but the silicon underneath tells two different stories. The Nothing Phone (3a) Pro runs on the Snapdragon 7s Gen 3 and pulls ahead in the benchmarks that matter most today: its AnTuTu score of 750,673 beats the CMF's 711,907, and it leads decisively in Geekbench 6 — both single-core (1162 vs 1007) and multi-core (3239 vs 2874). Geekbench 6 is the more current and reliable test for modern CPU behavior, so these figures carry real weight for sustained app performance and future-proofing.

The CMF Phone 2 Pro and its Dimensity 7300 do punch back in one area: its RAM runs at a striking 6400 MHz, versus the Nothing's 3200 MHz — double the memory bandwidth. This matters for tasks that move large amounts of data between processor and memory quickly, such as image processing or gaming asset streaming. However, the Nothing counters with 12GB of RAM versus the CMF's 8GB, which translates to more apps staying resident in memory simultaneously and smoother true multitasking over extended sessions. The CMF's Geekbench 5 multi-core score of 8046 looks extraordinary against the Nothing's 3242, but given that Geekbench 5 is an older, less representative test and the trend reverses entirely in Geekbench 6, this disparity likely reflects benchmark-specific behavior rather than a meaningful real-world gap.

On balance, the Nothing Phone (3a) Pro holds the clearer performance advantage: it leads in current-generation benchmarks and carries significantly more RAM for multitasking headroom. The CMF's faster RAM speed is a genuine technical asset but not enough to offset those deficits for most users. Gamers and heavy multitaskers will likely find the Nothing the more capable device over time.

The rear camera systems start from an identical foundation — 50 + 50 + 8 MP triple arrays with matching 4K/30fps video, OIS, and phase-detection autofocus on both phones — but diverge in two important ways. The Nothing Phone (3a) Pro offers 3x optical zoom against the CMF's 2x, meaning the Nothing can reach farther subjects with genuinely lossless magnification. That extra zoom step is consistently the one users wish they had when shooting portraits at distance or isolating details in a scene. Additionally, the Nothing's telephoto aperture is f/2.0 versus the CMF's matching f/1.9 on its second lens — a negligible difference — but the broader zoom range advantage is real and practical.

Where the Nothing Phone (3a) Pro separates itself most decisively is in two features that matter to photography-minded users. First, it supports RAW capture — something the CMF Phone 2 Pro lacks entirely. RAW files preserve unprocessed sensor data, giving users who edit in Lightroom or similar apps dramatically more dynamic range and color control in post-processing. Second, its 50MP front camera dwarfs the CMF's 16MP selfie shooter, offering substantially more detail and cropping flexibility — a significant gap for anyone who shoots a lot of selfies or video calls.

The CMF Phone 2 Pro does have a marginally wider front aperture (f/2.0 vs f/2.2), which offers a slight low-light advantage for selfies, but this is a modest consolation against a sensor with three times fewer megapixels. The Nothing Phone (3a) Pro holds a clear and well-rounded camera advantage: superior telephoto reach, RAW file support for enthusiasts, and a vastly higher-resolution front camera make it the stronger imaging device across the board.

This is a rare instance of a complete dead heat: every single operating system specification provided is identical between the CMF Phone 2 Pro and the Nothing Phone (3a) Pro. Both ship with Android 15, support the same privacy controls — including camera/microphone permissions, location options, and app tracking blocks — and share the same feature set covering split-screen multitasking, Picture-in-Picture, dynamic theming, offline voice recognition, and on-device machine learning. Neither receives direct OS updates, meaning both rely on their respective manufacturers for patch distribution rather than getting updates pushed straight from Google.

The shared feature set is broadly strong for an Android implementation: dynamic theming adapts the UI palette system-wide, on-device machine learning enables smarter suggestions without sending data to the cloud, and the included privacy toolkit gives users meaningful control over what apps can access. The absence of focus modes and Wi-Fi password sharing are minor gaps that apply equally to both, so neither phone is disadvantaged relative to the other.

From a software standpoint, this group offers no basis for choosing one phone over the other — it is an absolute tie. Users should weigh the other specification groups — design, performance, and cameras — when making their decision, as the operating system experience will be functionally equivalent out of the box on both devices.

Battery capacity is a non-debate here — both phones carry identical 5000 mAh cells, meaning expected screen-on time and overall endurance will be comparable under equivalent usage conditions. Neither supports wireless charging, and neither ships with a charger in the box, putting them on equal footing for out-of-the-box convenience (or lack thereof).

The one area where these phones genuinely diverge is wired charging speed. The Nothing Phone (3a) Pro supports 50W fast charging, compared to the CMF Phone 2 Pro's 33W. That 17W gap has tangible real-world consequences: at 50W, a depleted 5000 mAh battery can typically reach a usable charge in well under an hour, whereas 33W will take noticeably longer to hit the same threshold. For users who rely on quick top-ups between meetings or commutes, this difference is felt daily rather than just on paper.

The Nothing Phone (3a) Pro takes a clear edge in this category purely on charging speed — it is the only differentiator, but it is a meaningful one for anyone who does not have the luxury of long, uninterrupted charging windows. For users who charge overnight and rarely need a fast refill, the gap becomes largely irrelevant, and the two phones are effectively equivalent in battery terms.

Neither phone offers a 3.5mm headphone jack, FM radio, or any high-resolution Bluetooth audio codec — no aptX, LDAC, or their variants — so wired listening requires an adapter and wireless audio tops out at standard Bluetooth quality on both devices. That common ground established, the two phones split on the specs that define the everyday audio experience.

The most impactful difference is speaker configuration: the Nothing Phone (3a) Pro has stereo speakers, while the CMF Phone 2 Pro is limited to a single speaker. Stereo output creates a genuine sense of width and spatial separation when watching videos, gaming, or listening to music without headphones — a mono speaker simply cannot replicate that, producing a flatter, more directional sound. For anyone who regularly uses their phone as a media device without earphones, this is a significant quality-of-life gap. The Nothing also carries 3 microphones versus the CMF's 2, which typically enables more effective noise cancellation, better directional audio capture for video recording, and cleaner voice pickup on calls in noisy environments.

The Nothing Phone (3a) Pro wins this category without ambiguity — stereo speakers and an additional microphone are both meaningful, practical upgrades over what the CMF Phone 2 Pro offers. For users who value media playback quality and call clarity, the audio gap here is one of the more tangible differences between these two phones.

The connectivity foundation is largely shared: both phones support 5G, dual SIM, Wi-Fi 6, NFC, USB-C, GPS with Galileo, and an identical sensor suite covering gyroscope, accelerometer, and compass. For the vast majority of users, the day-to-day connectivity experience will be indistinguishable between the two.

Three specs separate them. The CMF Phone 2 Pro holds a notable advantage with its external memory card slot — something the Nothing Phone (3a) Pro entirely lacks. For users who want to cheaply expand storage, transfer files via card, or keep large media libraries offline, this is a genuine functional differentiator. The CMF also edges ahead in peak download speed at 3270 Mbits/s versus the Nothing's 2900 Mbits/s, though in practice both figures far exceed what real-world 5G networks deliver, making this gap academic for most users. The Nothing Phone (3a) Pro counters with Bluetooth 5.4 against the CMF's 5.3 — a minor generational step that brings marginally improved connection stability and efficiency, though the practical difference in daily use is minimal.

This category leans toward the CMF Phone 2 Pro, and the reason is straightforward: the external memory slot is a tangible, user-facing feature that adds flexibility the Nothing simply cannot match. The Nothing's Bluetooth 5.4 advantage is too incremental to offset losing expandable storage, making the CMF the stronger pick for connectivity versatility.

The miscellaneous specifications for these two phones are identical across every data point provided: both feature a video light, and neither has a sapphire glass display, curved display, or e-paper display. There is simply nothing in this group that distinguishes the CMF Phone 2 Pro from the Nothing Phone (3a) Pro.

This is a complete tie, and the group carries little weight in an overall buying decision. Users should look to the more substantive categories — cameras, performance, audio, and design — where the two phones demonstrate real, meaningful differences.