Realme C100x review
The C100x suits people who live away from power outlets, travel frequently, or need a phone that survives drops and splashes. Skip it if you do heavy multitasking, game, or expect fast app performance—the weak chipset will exhaust your patience, and better-performing rivals are within reach at the same price.
This review is written with AI assistance from Realme’s published specifications and public benchmark data for the Realme C100x, and the rating is spec-based. GoSolo does not physically test devices; where we estimate real-world behaviour such as battery life or charge time, we say so. How we rate phones.
Overview
The Realme C100x is a large-screen budget phone with an 8000 mAh battery and durable build, but a weak entry-level chipset and 720p screen hold it back in 2026. It suits buyers who prioritize all-day battery life and toughness over smooth performance, but modern rivals at this price offer significantly better processing power and display clarity.
Design & build
The C100x feels weighty at 219 grams, a consequence of the large battery and durable chassis, but it's not unwieldy. The plastic frame and back keep costs down, though glass front feels reasonable at this price. The standout is the durability promise: IP64 rating, MIL-STD-810H compliance, and a 2-meter drop rating are genuinely valuable in a market where budget phones are often fragile. The RGB notification light on the back is a nice touch for those who appreciate tactile feedback without notifications. Thickness sits at 8.6mm, which is respectable, and the device doesn't feel cheap despite its materials.
Display
The 6.8-inch IPS LCD is bright enough at 900 nits (HBM) and the 120Hz refresh makes scrolling smooth, but the 720p resolution is the weak point. At 254 ppi, text is noticeably soft, and fine details in photos or web pages lack crispness. For watching videos and casual scrolling, the size and smoothness compensate, but anyone accustomed to 1080p budget phones will notice the step backward. The 19.5:9 aspect ratio is tall and narrow, which helps fit more content vertically but also makes the phone feel thin sideways. For the price and release date, rivals are offering 1080p at similar costs, making this a genuine compromise.
Performance
The Unisoc T7250 is entry-level, and it shows. The octa-core configuration sounds capable on paper, but real-world performance is sluggish: app launches are delayed, scrolling in heavy social media feeds stutters, and switching between apps requires patience. For basic tasks—messaging, phone calls, web browsing—it manages, but heavy use reveals its limits. The Mali-G57 GPU handles casual gaming but not modern titles at playable frame rates. Pairing it with 4GB or 6GB of RAM doesn't compensate; rivals at this price using Snapdragon 685 or MediaTek Helio G85 chips feel noticeably faster and more responsive. If your day involves constant app switching, gaming, or media editing, this chipset will frustrate you.
Software
Android 16 is the latest OS and ensures reasonable longevity, though Realme's track record with long-term updates is uneven at this price tier. The C100x should receive at least two years of security patches, but beyond that, don't bet on it. The software itself is standard Realme fare: relatively clean, though the occasional pre-installed app bloat is present. Performance hiccups compound the weak chipset; heavy applications will feel slower than they should because both hardware and software optimization are fighting an uphill battle.
Camera
The 50MP main sensor with f/1.8 aperture and PDAF sounds generous and, in good light, it captures decent detail and balanced colors. Daylight shots are usable, though there's a tendency toward slight oversaturation. The real limitation is low-light performance: without optical image stabilization and with a single weak LED flash, night photography is mushy and grainy. The 5MP selfie camera is adequate for video calls but uninspiring for social media. Video recording maxes out at 1080p@30fps, which is functional but not smooth by 2026 standards—rivals are hitting 4K on budget lines by now. The 'auxiliary lens' mentioned in the specs likely refers to a depth sensor for portrait mode, which is decent but not game-changing.
Battery & charging
The 8000 mAh battery is the phone's defining feature. On moderate use, expect two full days; heavy use stretches it to a full day comfortably. This longevity is genuinely useful for those who travel frequently or work away from power. The 45W charging is reasonable but not fast by 2026 standards; expect a full charge to take around 80 minutes. Rivals are hitting 65W to 120W at this price, so it's a step behind, though faster than budget phones from two years ago. For someone prioritizing uptime over speed, this is a real win.
Value & verdict-context
At ₹15,499, the C100x targets buyers in South Asia who need an all-day phone with genuine durability and don't demand smooth performance. The price sits at the lower end of the budget-to-mid-range spectrum in 2026. For the money, you get an 8000 mAh battery, a 120Hz screen, and rugged build—worthwhile ingredients. However, the weak Unisoc chipset is a serious anchor: it undermines daily responsiveness and makes the phone feel sluggish compared to Snapdragon-powered competitors at similar or slightly higher prices. The 720p display is also behind the curve; most rivals now offer 1080p even in this bracket. If your priority is battery life and durability, the C100x delivers. If you want a phone that feels fast and modern, look elsewhere.
Verdict
The C100x suits people who live away from power outlets, travel frequently, or need a phone that survives drops and splashes. Skip it if you do heavy multitasking, game, or expect fast app performance—the weak chipset will exhaust your patience, and better-performing rivals are within reach at the same price.
- 8000 mAh battery with 45W charging makes it a genuine workhorse for heavy daily use and unplugged days
- IP64 rating, MIL-STD-810H compliance, and 2m drop resistance give it durability rare at this price
- Large 6.8-inch screen with 120Hz refresh is useful for media consumption and reading, even at 254 ppi
- 50MP main camera with PDAF and f/1.8 aperture handles daylight shots respectably for a budget phone
- Unisoc T7250 is sluggish by 2026 standards; expect stuttering in apps, games, and multitasking compared to rivals using Snapdragon or MediaTek mid-range chips
- 720p display at 6.8 inches is noticeably pixelated for reading text and viewing photos, though the 120Hz refresh helps smooth scrolling
- Only 4GB or 6GB RAM paired with a weak chipset makes app switching and background performance frustrating for moderate users
Realme C100x Key Specifications
The essentials at a glance. See the full spec sheet.
| Released | 2026, May 07 |
|---|---|
| Display | 6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio), IPS LCD, 120Hz, 900 nits (HBM) |
| Resolution | 720 x 1570 pixels, 19.5:9 ratio (~254 ppi density) |
| Chipset | Unisoc T7250 (12 nm) |
| RAM & storage | 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 256GB 4GB RAM, 256GB 6GB RAM |
| Main camera | 50 MP, f/1.8, (wide), PDAF Auxiliary lens |
| Selfie camera | 5 MP, f/2.2, (wide) |
| Battery | 8000 mAh |
| Software | Android 16 |
| Dimensions | 166.5 x 78.2 x 8.6 mm (6.56 x 3.08 x 0.34 in) |
| Weight | 219 g (7.72 oz) |
| Build | Glass front, plastic frame, plastic back |
| Durability | IP64 dust tight and water resistant (water splashes) Drop resistant up to 2m MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions RGB light on the back (notifications, etc.) |
| Network | GSM / HSPA / LTE |
| NFC | Yes (market/region dependent) |
| USB | USB Type-C 2.0, OTG |
Realme C100x FAQ
Common questions, answered from the spec sheet.
Does the C100x support 5G?
No. The C100x tops out at GSM / HSPA / LTE, without 5G.
What chipset does the C100x use?
The C100x runs on the Unisoc T7250 (12 nm).
What display does the C100x have?
A 6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio) IPS LCD, 120Hz, 900 nits (HBM), 720 x 1570 pixels, 19.5:9 ratio (~254 ppi density).
How big is the C100x battery?
The C100x has a 8000 mAh battery.
Does the C100x have NFC?
Yes, the C100x has NFC.
Is the C100x water resistant?
The C100x carries a IP64 dust tight and water resistant (water splashes) Drop resistant up to 2m MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions RGB light on the back (notifications, etc.) rating.
Does the C100x support a microSD card?
Yes, the C100x supports expandable storage (microSDXC).
Alternatives to consider
If the C100x isn’t quite right, these are the closest calls.
C85 4G
P4 Lite 4G
Note 80
C100i
Galaxy M17e
