Oppo Reno6 5G vs Nokia G21 - Detailed Phone Comparison

Detailed Comparison

Specification
Nokia G21
Nokia G21
Nokia

General

Launch Date June 11, 2021 February 15, 2022
Release Year 2021 2022

Physical

Volume 85.92 cm³ 106.19 cm³
Screen Size to Weight Ratio 3.53 "/g 3.42 "/g
Weight 182 g 190 g
Height 156.8 mm 164.6 mm
Width 72.1 mm 75.9 mm
Thickness 7.6 mm 8.5 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Dusk
  • Nordic Blue

Display

Screen Size 6.43 " 6.5 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.3 % 81.6 %
Pixel Density 409 PPI 270 PPI
Refresh Rate 90 Hz 90 Hz
Typical Brightness 430 nits 400 nits
HBM Brightness 600 nits N/A
Peak Brightness 750 nits N/A

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 119.53 mAh/in²
Battery Density 50.05 mAh/cm³ 47.56 mAh/cm³
Battery Capacity 4300 mAh 5050 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Unisoc T606 (12 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU Mali-G68 MC4 Mali-G57 MP1

Connectivity

USB Version 2.0 2.0
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0, OTG USB Type-C 2.0, OTG

Software

Operating System Android Android
Initial OS Version 11 11
Maximum OS Version 12 13

Comparison Summary

Oppo Reno6 5G vs. Nokia G21: Detailed Comparison

1. Specifications Breakdown

FeatureOppo Reno6 5GNokia G21Real-World Implications
Design156.8 × 72.1 × 7.6 mm, 182g164.6 × 75.9 × 8.5 mm, 190gOppo is slimmer and lighter, easier for one-handed use. Nokia is bulkier but may feel more rugged.
Display6.43" AMOLED, 1080x2400, 409 PPI6.5" IPS LCD, 720x1600, 270 PPIOppo’s AMOLED offers richer colors, deeper blacks, and better sunlight visibility (1100 nits vs. unknown). Nokia’s lower resolution means less sharpness.
Refresh Rate90Hz90HzBoth smooth for scrolling, but Oppo’s AMOLED gives a more responsive feel.
PerformanceDimensity 900 (6nm), 815K AnTuTuUnisoc T606 (12nm), 253K AnTuTuOppo is 3x faster—better for gaming, multitasking, and future-proofing. Nokia is adequate for basics only.
Storage & RAM128/256GB, 8/12GB RAM64/128GB, 4/6GB RAMOppo has more storage and RAM, ideal for power users. Nokia’s base model (64GB/4GB) may struggle with heavy apps.
Battery4500mAh, 65W fast charging5050mAh, 18W chargingNokia lasts longer but charges slower (0-100% in ~2hrs vs. Oppo’s ~35 mins).
Rear Cameras50MP (Sony IMX766) + 16MP UW + 13MP tele + 2MP macro50MP (Samsung JN1) + 2MP depth + 2MP macroOppo’s larger sensor, OIS, and ultrawide/telephoto lenses deliver far better photos and 4K video. Nokia’s setup is basic.
Selfie Camera32MP (Sony IMX615)8MPOppo’s high-res sensor is better for video calls and selfies.
SoftwareAndroid 11 (up to 12)Android 11 (up to 13)Nokia may get longer updates, but Oppo’s hardware ages better.
ConnectivityWi-Fi 6, BT 5.2, 5GWi-Fi 5, BT 5.0, 4GOppo offers faster networking and future-ready 5G.
ExtrasGorilla Glass 5, gyroscopeSide-mounted fingerprintOppo has better screen protection and gaming-friendly sensors.

2. Key Insights

Oppo Reno6 5G Wins On:

  • Performance: Blows Nokia away in speed and gaming.
  • Display: AMOLED with high resolution and brightness.
  • Cameras: Versatile lenses, 4K video, and superior low-light shots.
  • Charging: 65W fast charging is a game-changer.

Nokia G21 Wins On:

  • Battery Life: 5050mAh lasts longer (but slow to recharge).
  • Price: Likely cheaper, but specs reflect the cost-cutting.
  • Software: Potential extra Android update.

Trade-Offs:

  • Oppo’s battery is smaller but charges 3x faster.
  • Nokia’s display and chipset feel outdated next to Oppo.

3. User Profiles & Recommendations

Choose Oppo Reno6 5G If You:
✔ Want a premium-feeling phone with flagship-level performance.
✔ Prioritize cameras, gaming, or media consumption.
✔ Need fast charging for on-the-go use.

Choose Nokia G21 If You:
✔ Need max battery life and don’t mind slow charging.
✔ Only use your phone for calls, texts, and light apps.
✔ Prefer a budget device with a simpler UI.


4. Buying Decision Framework

Ask Yourself:

  1. "Do I care more about speed or battery?" → Oppo for speed, Nokia for endurance.
  2. "Will I use advanced cameras?" → Oppo’s setup is vastly superior.
  3. "Is 5G or software longevity critical?" → Oppo for 5G, Nokia might get longer updates.

Scenario-Based Picks:

  • Student/Gamer: Oppo (performance matters).
  • Budget User: Nokia (if price is the priority).
  • Photography Enthusiast: Oppo (no contest).

Final Verdict: Which Would I Choose?

I’d pick the Oppo Reno6 5G—it’s the clear winner for anyone who values performance, display quality, and cameras. The faster chipset, AMOLED screen, and 65W charging make it feel like a flagship, while the Nokia G21 feels like a budget compromise.

The only reason to pick the Nokia is if you need extreme battery life on a tight budget—but even then, Oppo’s fast charging compensates. For most users, the Reno6 5G delivers far better value in the long run.

Alex Griffin
Alex Griffin

Technology analyst specializing in mobile devices and consumer electronics.

Core Expertise

  • Mobile technology analysis
  • Consumer electronics evaluation
  • Technical specification interpretation
  • User experience insights

Professional Mission Empowering readers to make informed technology decisions by transforming intricate specifications into understandable, practical guidance.

Demystifying technology, one device at a time.